Choosing a Emergency Lighting Supplier in China: Factory Checklist

Emergency Lighting Buyer Guide

The right iluminação de emergência supplier for a school or hospital project is determined by three things: the host fixture you are converting or installing, the emergency duration your local code demands—typically 90 minutes for NFPA 101 in the Americas or 3 hours for BS 5266-1 in the UK—and the approval mark the fire inspector or facilities manager will accept, whether that is EN 60598-2-22 with CE for Europe, UL 924 for North America, or AS/NZS 2293 for Australasia. A classroom retrofit using a 40W LED panel with a maintained wiring configuration needs a 15W to 20W emergency driver delivering 540 to 720 lumens at 10% to 15% of normal output for 90 minutes, while a hospital corridor with EN 1838 compliance requires 1 lux minimum on the floor centreline and 0.5 lux at the perimeter, often driving a 3-hour LiFePO4 6.4V 3000mAh pack through a constant current inverter output window of DC 25-42V at 350mA.

This page covers how to qualify a real manufacturer versus a trading office when sourcing these products from China, with particular attention to the test records, sample lead times and payment structures that procurement officers in education and healthcare sectors need to de-risk long supply chains.

In-House SMT and Assembly Capacity

A factory with surface-mount technology lines can turn a PCBA for an emergency driver in 7 to 10 days, while a trading office sourcing from multiple subcontractors quotes 25 to 35 days with no visibility of component batch consistency. Ask for the SMT line brand—Yamaha, Juki or Hanwha are common—and the number of reflow ovens. Battery pack assembly in-house, including spot-welding of Li-ion 18650 cells or LiFePO4 pouches, indicates control over the highest-failure component in any emergency unit. A trading office will show you a workshop they do not own; request video of the specific ageing test station with date stamps.

Battery Sourcing and Traceability

School and hospital projects require 500 to 800 cycle life from LiFePO4 packs or 300 to 500 cycles from Li-ion 18650 3.7V 2600mAh configurations. The supplier should provide cell manufacturer certificates—EVE, Lishen or BAK are typical—and UN 38.3 test summaries for the assembled pack before shipment. NiCd 3.6V 1500mAh alternatives still appear in price-sensitive markets but carry 20% to 30% shorter cycle life and environmental disposal complications in EU member states. Traceability means lot numbers on cells matching the pack serial number and discharge test records.

Discharge and Duration Test Records

Every production batch should have 100% discharge validation at rated load for the full duration—90 minutes, 2 hours or 3 hours—recorded with timestamps and load bank readings. A manufacturer maintains programmable electronic loads and data loggers; a trading office has spot-check certificates from a subcontractor that may not cover your SKU. Ask to see records for the specific output window your fixture requires: DC 9-18V at 500mA for tubular LED retrofits, or DC 180-260V at 100mA for high-bay applications. Hipot testing at 1500V AC for 60 seconds should appear in the same record set.

Third Party Test Reports for the Destination Market

Do not accept a generic “CE certificate” as sufficient. EN 60598-2-22 requires specific clause testing for thermal endurance, fault conditions and battery overcharge protection. EN 62034 covers automatic test systems including self-test and DALI test facility integration. For UK projects, BS 5266-1 compliance includes maintained versus non-maintained wiring verification. UL 924 demands flame propagation testing on plastics and 90-minute duration at 25°C ambient. Ask the supplier to show the test report number, the accredited laboratory—TÜV, SGS, Intertek or BSI—and the exact model designation covered. A trading office often holds reports for a predecessor product that does not match current hardware.

Sample Lead Time and Payment Structure

A manufacturer with stocked cells and PCBA blanks can deliver samples in 10 to 15 days; 30 to 45 days indicates subcontractor dependency. Payment terms for initial orders typically run 30% T/T deposit, 70% against copy of bill of lading, though school and hospital buyers with established credit may negotiate 60-day terms after two successful shipments. For lithium battery orders over 100 units, UN 38.3 certification and IATA/IMDG-compliant carton packing—inner boxes of 10 units, outer cartons of 40, palletised with lithium battery handling labels—add 2 to 3 days to dispatch. FOB Shenzhen pricing for a 10W maintained emergency driver with LiFePO4 3.2V 3000mAh pack ranges from $18 to $28 depending on self-test or DALI functionality; non-maintained variants with NiCd 3.6V 1500mAh start near $12 but sacrifice cycle life and cold-temperature performance below 0°C.

After-Sales Engineering Capability

Hospital and school projects span 5 to 10-year maintenance contracts. The supplier should designate an applications engineer who can recalculate lumen output when you change the host fixture from 4000K to 3000K, or revise the inverter output window from DC 25-42V to DC 20-36V for a different LED module. Ask for a written commitment on firmware update availability for DALI-2 self-test units and a defined RMA process with replacement lead time of 15 days or less. A trading office routes technical questions back to an unnamed factory; a manufacturer has the schematic on file and can explain why the changeover relay is rated for 100,000 operations at 250V AC.

Types and Configurations of Emergency Lighting

Type or Class	Typical Rating or Output	Duration or Runtime	Best Suited For	Notes
Full-Power Emergency Driver for LED High Bays	50–200W normal load; 100% output in emergency	90 min or 3 hr	Warehouses, sports halls, high-bay manufacturing	Requires thermal management; LiFePO4 12.8V 4500mAh typical; constant current inverter 25–45V DC 700–1400mA
Reduced-Power Emergency Driver for Panels and Tubes	18–40W normal; 10–30% output (200–800 lm) in emergency	90 min or 2 hr	Offices, classrooms, hospital corridors	Most common retrofit class; Li-ion 18650 7.4V 2600mAh or NiCd 3.6V 1800mAh; output 15–25V DC 200–350mA
Maintained Emergency Exit Sign	2–4W maintained LED; 2W non-maintained	90 min or 3 hr	All public buildings; mandatory for schools and hospitals per BS 5266-1	Changeover relay switches to battery on mains failure; self-test or DALI per EN 62034; LiFePO4 3.2V 3000mAh
Non-Maintained Emergency Twin Spotlight	2 × 3W LED heads; 0W normal, 6W emergency	90 min or 2 hr	Industrial perimeters, loading bays, external escape routes	IK08 enclosure typical; NiCd 4.8V 4000mAh or LiFePO4 6.4V 3000mAh; IP65 for outdoor; manual test key standard
Self-Test Emergency Strip (SMD 2835)	10W/m normal; 3W/m emergency (300–450 lm/m)	90 min or 3 hr	Cove lighting, stair nosing, low-level escape route marking	120 LEDs/m; 3000K or 4000K; CRI 80; 24V DC; cut length 50mm; PCB width 10mm, 2oz copper; LiFePO4 7.4V 2200mAh
DALI-Addressable Central Battery System	24V or 216V DC bus; luminaire-level switching	1–3 hr	Hospitals, large schools, complexes requiring monitored testing	EN 62034 automated test logging; battery room with vented NiCd or LiFePO4 rack; not for standalone retrofit

Full-Power Emergency Drivers for LED High Bays

These units carry the full rated load of high-bay luminaires without lumen reduction during emergency operation. A 150W LED high bay running at 100% emergency output demands a LiFePO4 battery pack at 12.8V 4500mAh minimum, with inverter output around 25–45V DC at 700–1400mA depending on the LED module forward voltage. The thermal challenge is severe: the same heatsink must dissipate both LED and inverter losses, so ambient temperature range is typically limited to 0°C to +45°C unless derated. Buyers are normally industrial procurement officers and M&E consultants specifying warehouses and sports facilities. What this class cannot do is retrofit cheaply into existing non-emergency fixtures; the luminaire OEM must design the housing, driver compartment, and battery cavity together. Ask the supplier for discharge test records at full load and 25°C ambient, plus IEC 61347-2-7 compliance documentation for the inverter module.

Reduced-Power Emergency Drivers for Panels and Tubes

This is the volume class for office and healthcare retrofit. The driver delivers 10–30% of normal output in emergency—sufficient for escape route illumination per EN 1838, not for working continuity. Typical specification: Li-ion 18650 7.4V 2600mAh pack, constant current output 15–25V DC at 200–350mA, 90-minute duration. NiCd 3.6V 1800mAh remains available for price-sensitive markets but carries 500-cycle life versus 800–1200 for Li-ion. Electrical contractors and lighting wholesalers buy these in bulk for panel and tube upgrades. The limitation is clear: a 600-lumen emergency output from a 4000-lumen panel does not meet task lighting needs, and maintained wiring adds installation cost where the circuit must stay live. Verify that the supplier holds discharge duration test data for the exact LED load you will drive, not just a nominal resistor test.

Maintained Emergency Exit Signs

BS 5266-1 and EN 1838 require maintained operation in many school and hospital applications—the sign stays illuminated during normal hours via mains, switching to battery on failure. The changeover relay or electronic switch must transfer within 0.5 seconds. Self-test facilities per EN 62034 cycle monthly function tests and annual duration tests; DALI integration allows building management system logging. Battery chemistry is typically LiFePO4 3.2V 3000mAh for 3-hour duration at 2–4W, with charge time 24 hours to full capacity. Facility managers and fire safety officers specify these. What maintained signs cannot do is simplify wiring: they require a permanent live, neutral, and switched live at each point, tripling cable runs in some installations. Confirm the supplier’s battery source has cell-level traceability; untraced lithium cells are a customs and insurance risk.

Non-Maintained Emergency Twin Spotlights

Industrial buyers and facilities managers specify these for perimeter escape routes and external loading areas. The heads are off during normal operation, energising only on mains failure via internal changeover circuitry. IK08 impact resistance and IP65 enclosure are standard for outdoor exposure. Battery packs are commonly NiCd 4.8V 4000mAh or LiFePO4 6.4V 3000mAh, delivering 90 minutes at 6W total load. Manual test key is default; self-test adds 15–20% to unit cost. The trade-off is battery cycle life: NiCd achieves 300–500 cycles, LiFePO4 800–1500 cycles, but NiCd tolerates -20°C to +50°C better than lithium in unheated industrial spaces. These units cannot serve as maintained lighting without rewiring and internal modification. Request IP and IK test reports to EN 60598-2-22 from the actual production batch, not a similar model.

Self-Test Emergency LED Strips

Low-level escape route marking in stairs and corridors increasingly uses SMD 2835 strip with integrated emergency battery pack. Specification: 120 LEDs per metre, 10W/m normal, 3W/m emergency at 300–450 lm/m, 3000K or 4000K, CRI 80, 24V DC input, 50mm cut length, 10mm PCB width with 2oz copper for current carrying. The battery is typically LiFePO4 7.4V 2200mAh, 90-minute or 3-hour duration, with automatic monthly self-test. Lighting designers and specialist contractors buy these for architectural cove and nosing applications. The constraint is length: voltage drop limits continuous run to 5–8 metres from a single battery pack, and the integrated battery adds 15–20mm to strip depth, complicating shallow recesses. Verify the supplier has ageing test data—72-hour minimum burn-in at 40°C ambient—before shipment.

DALI-Addressable Central Battery Systems

Hospitals and large schools with hundreds of emergency points specify central battery systems per EN 62034 for automated compliance logging. A 24V or 216V DC bus feeds luminaire-level switching modules; battery rooms house vented NiCd or LiFePO4 racks from 100Ah to 500Ah capacity. Duration is configurable 1–3 hours. M&E consultants and project procurement officers at institutional scale buy these. What they cannot do is retrofit economically into small buildings: the capital cost, dedicated battery room ventilation, and commissioning engineering exceed standalone unit prices by an order of magnitude. The supplier must demonstrate third-party test reports for the central inverter to IEC 61347 and the complete system to EN 60598-2-22; ask specifically whether the reports cover your destination country’s voltage (230V 50Hz for UK/Europe, 120V 60Hz for UL 924 markets, 220–240V for Middle East and Southeast Asia).

Supplier Qualification Checklist for School and Hospital Projects

Battery sourcing and traceability separate manufacturers from trading offices. A factory with in-house SMT and final assembly should show you cell supplier certificates of origin, UN 38.3 test summaries for lithium transport, and batch discharge records with duration timestamps. Ask for ageing and hipot test stations on site: 72-hour burn-in at elevated temperature, and 1500V AC isolation testing between mains and output. Third-party test reports for the destination market—CE DoC with EN 60598-2-22 and EN 1838 test evidence, or UL 924 file numbers for North America—must match the exact model and battery configuration you will receive. Sample lead time from a real factory is 7–14 days for existing models, 4–6 weeks for modified battery capacity or custom output voltage. Payment structure for first orders is typically 30% TT deposit, 70% against BL; LC at sight is negotiable above USD 50,000. After-sales engineering capability means a technical contact who can recalculate duration for your specific LED load, not a sales agent forwarding emails to an unnamed engineer.

Specifications and How to Read Them

Parameter	Entry Level	Mid Range	High Specification
Input Voltage / Frequency	AC 85-265V 50/60Hz	AC 100-277V 50/60Hz	AC 220-240V 50Hz or market-specific
Driven Load (Normal Mode)	3-10W LED	10-25W LED	25-60W LED high bay / panel
DC Output Voltage Window	9-42V	9-60V	20-240V (high-voltage strip compatible)
DC Output Current	150-350mA constant current	300-700mA constant current	500-1400mA constant current
Saída de emergência	150-300lm at 30% of normal	400-800lm at 50-100% of normal	1500-4000lm at 100% full power
Duração da emergência	90 minutes	2 hours	3 horas
Battery Chemistry	NiCd 3.6V 1200mAh	Li-ion 18650 7.4V 2200mAh	LiFePO4 12.8V 3000mAh
Charge Time	24 hours to 80%	16 hours to 90%	6-8 hours to 100%
Cycle Life	300-500 cycles	800-1000 cycles	1500-2000 cycles
Test Facility	Manual test key only	Auto self-test per EN 62034	Self-test + DALI-2 addressable
Wiring Mode	Non-maintained	Non-maintained or maintained	Maintained with changeover relay
IP / IK Rating	IP20 / IK02	IP65 / IK07	IP66 / IK08
Ambient Temperature	0°C to +25°C	-10°C to +40°C	-20°C to +50°C
Dimensions (L×W×H)	120×35×22mm	160×42×28mm	200×55×35mm
Mounting	Internal driver cavity	Internal or remote steel enclosure	Remote weatherproof enclosure

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How to Read the Input Voltage and Frequency Line

The input range tells you where the driver will survive, not where it performs best. A label reading “AC 85-265V 50/60Hz” means the unit accepts anything from Japanese 100V to South American 254V nominal, but the emergency inverter stage may derate at the extremes. For UK and EU school and hospital projects, specify AC 220-240V 50Hz to avoid the efficiency penalty at 110V. Check whether the supplier’s own hipot test records show 1500V AC withstand for 60 seconds between input and output; EN 61347-2-7 requires this for iluminação de emergência controlgear. If the datasheet omits the frequency, assume 50Hz only and confirm for 60Hz markets such as Saudi Arabia or parts of Latin America.

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How to Read the Driven Load and DC Output Window

“Driven load 3-25W” with a “DC 9-42V 350mA” output means the driver delivers constant current, not constant voltage. The luminaire LED array must fall within that voltage window at the stated current. A 10W LED module running at 350mA would sit at roughly 28.5V—comfortably inside 9-42V. If your LED array needs 48V, this driver cannot run it. For high-bay emergency conversion, look for “full power output” drivers rated 25-60W with a 20-60V or higher window; these maintain 100% lumen output in emergency mode rather than dropping to 30% or 50%. Ask the supplier for the discharge test record showing actual lumen maintenance at 90 minutes, 2 hours and 3 hours, not just the battery voltage curve.

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How to Read Emergency Output in Lumens and Percentage

EN 1838 mandates minimum illuminance on escape routes: 1 lux on the centreline, 0.5 lux over the full width. The percentage figure on the datasheet—30%, 50%, 100%—tells you whether the emergency inverter is sized for visibility or for full task continuation. A hospital operating theatre or A&E corridor needs 100% maintained output; a school storeroom may accept 30% if the escape route calculation still meets 1 lux. The lumen figure must be paired with the luminaire’s light distribution; 300lm from a wide-beam exit sign face is different from 300lm from a narrow-beam twin spotlight. Request the photometric file (.ldt or .ies) with emergency mode output, not just normal mode.

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How to Read Battery Chemistry Voltage and Capacity

NiCd 3.6V 1200mAh delivers roughly 4.3Wh nominal. At 80% depth of discharge and inverter efficiency of 85%, usable energy is about 2.9Wh—enough for 90 minutes at roughly 1.9W LED load. This is the entry-level chemistry; it tolerates trickle charging but contains cadmium, which triggers RoHS restrictions and waste-battery handling costs in the EU. Li-ion 18650 7.4V 2200mAh (two cells in series) yields 16.3Wh nominal, roughly 11Wh usable, supporting 2 hours at 5W or 90 minutes at 7W. LiFePO4 12.8V 3000mAh in a 4S1P configuration gives 38.4Wh nominal, roughly 30Wh usable, enabling 3 hours at 10W or full-power 25W output for 90 minutes. LiFePO4 carries lower thermal runaway risk than Li-ion NMC, but the nominal voltage (3.2V per cell) requires a driver specifically matched to the lower discharge curve. Ask for the cell brand and model: A-grade Lishen, EVE or BAK cells carry full traceability; no-name repackaged cells may not.

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How to Read Charge Time and Cycle Life

“Charge time 24 hours” on a NiCd pack means the trickle-rate charger is sized small to save cost; the battery spends most of its service life at 90-100% state of charge, which accelerates memory effect. “6-8 hours to 100%” on LiFePO4 implies a CC-CV charger stage, typically 0.5C to 1C rate. Cycle life figures assume standard test conditions: 25°C ambient, 80% depth of discharge, 0.2C discharge rate. In a 40°C plant room or with daily self-test cycling, actual life may halve. Request the supplier’s ageing test records: 28 days at 40°C and 90% humidity is a common accelerated ageing screen for emergency driver electronics.

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How to Read Test Facility and Wiring Mode

Manual test key: a physical switch or pin that forces battery discharge. Compliant with EN 60598-2-22 but requires a maintenance visit every month and annual duration test under BS 5266-1. Self-test per EN 62034: the driver automatically exercises the battery for a short period at intervals, reporting fault via LED indicator. DALI-2 test facility: addressable over the DALI bus, with status readable by building management software. Maintained wiring: the emergency unit receives permanent mains and switches the LED between normal driver and emergency inverter via a changeover relay. Non-maintained: the unit charges in standby and only activates when mains fails. Maintained costs more in cable and switching but allows the same luminaire to serve normal and emergency duty; non-maintained requires separate emergency luminaires or combined normal/emergency fittings with internal changeover.

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How to Read IP IK Rating and Ambient Temperature

IP20: touch-safe, dust-protected, no water resistance. Acceptable for internal driver cavities in dry corridors. IP65: dust-tight, protected against water jets. Required for hospital kitchens, school changing rooms, external canopies. IP66: dust-tight, protected against powerful water jets. IK02: impact resistance 0.2 joule (roughly a 10cm drop of 200g). IK07: 2 joule, equivalent to a 500g mass dropped from 40cm—minimum for public areas with risk of vandalism. IK08: 5 joule. Ambient temperature range -20°C to +50°C is the practical limit for LiFePO4; below 0°C discharge efficiency drops, and above 45°C calendar ageing accelerates. NiCd tolerates wider temperature but at lower energy density. For Middle East projects, confirm the supplier has run discharge duration tests at 50°C ambient, not just 25°C.

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How to Verify a Real Manufacturer From a Trading Office

In-House or Partnered SMT and Assembly Capacity

Ask for photos with date stamps of the SMT line, reflow oven and AOI station. A real manufacturer handles PCB assembly for the driver board and battery management system in-house or through a controlled partnership with traceable work orders. A trading office sources finished drivers from multiple anonymous workshops and cannot guarantee firmware revision consistency. Request the firmware version loaded on the sample and confirm it matches the production batch records.

Battery Sourcing and Traceability

Demand the cell manufacturer’s specification sheet and the UN 38.3 test report for the exact cell model, not just the finished battery pack. The report should show test reports for T1-T8 (altitude simulation, thermal, vibration, shock, external short, crush, overcharge, forced discharge). Ask whether the supplier assembles battery packs in-house with spot-welded nickel strip and PCM protection, or receives pre-built packs from a third party. In-house assembly with documented welding parameters (current, duration, pressure) indicates process control.

Discharge and Duration Test Records

A manufacturer maintains ageing and duration test stations: load banks that cycle battery packs through full discharge at rated current while logging voltage, temperature and lumen output. Ask for the test protocol document and a sample record showing batch number, test date, ambient temperature, initial and final lumen reading, and pass/fail against the rated duration. Trading offices rarely have these records; they rely on supplier assurances.

Ageing and Hipot Test Stations

Hipot (high potential) testing applies 1500V AC or 2121V DC between input and output for 60 seconds per EN 61347. Ageing runs production units at 40°C for 4-8 hours before final test. Request the station capacity: “two hipot testers, 500 units per day” is a concrete answer. “We have strict quality control” is not.

Third Party Test Reports for the Destination Market

Do not accept a generic CE certificate. Ask for the test report number, testing laboratory name, and standard list: EN 60598-2-22 for luminaires, EN 61347-2-7 for emergency controlgear, EN 62034 for self-test systems, EN 55015 for EMC. For UKCA, the same standards apply but the notified body or approved body designation differs post-Brexit. For UL 924 entry to North America, the report must list the specific model number. For AS/NZS 2293 for Australia and New Zealand, require the certificate of conformity from an accredited certification body. A trading office forwards whatever the workshop provides; a manufacturer maintains a register and can explain which models share a platform and which required separate testing.

Sample Lead Time and Payment Structure

Sample lead time under 7 days from confirmed specification suggests stocked finished goods or trading office buffer stock. A manufacturer quoting 10-15 days for sample build is realistic: PCB fabrication 2-3 days, SMT 1-2 days, assembly and test 2-3 days, battery pack build and integration 2-3 days. Payment structure: 30% T/T deposit, 70% against copy of bill of lading is standard for first orders. A trading office may demand 50% or 100% upfront because they lack credit with their supply base. Letters of credit (L/C at sight) are acceptable for orders above $30,000 but add $400-800 in bank charges; manufacturers with export experience handle L/C routinely, trading offices often resist the documentation burden.

After-Sales Engineering Capability

Ask who reviews your luminaire’s LED specification to confirm compatibility with their emergency driver. A manufacturer’s application engineer requests the LED forward voltage curve and normal driver output characteristic, then calculates the emergency inverter duty cycle and expected lumen maintenance. A trading office forwards your email to their supplier and returns a yes/no answer after 48 hours. For DALI-2 integration, ask for the DALI product test certificate from the DALI Alliance; even if the supplier is not yet certified, they should know the registration process and timeline.

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Trade Terms and Export Practicalities

FOB CIF CFR EXW

EXW (Ex Works): you collect from the factory door, arrange all export clearance, ocean freight and import duty. Lowest supplier price, maximum buyer logistics burden. FOB (Free On Board): supplier delivers to port and loads vessel; you pay ocean freight and insurance. Standard for first-time relationships. CFR (Cost and Freight): supplier pays freight to destination port; risk transfers at loading, so you insure the transit. CIF (Cost Insurance Freight): supplier arranges freight and marine insurance; convenient but the insurance terms may be minimal. For school and hospital projects with tight handover dates, FOB with your own freight forwarder gives control; CIF with a nominated forwarder adds 5-10% to the landed cost but reduces coordination.

Payment Terms

T/T (Telegraphic Transfer): 30% deposit, 70% against B/L copy is standard. For repeat orders, 30/70 with 60-day open account may be negotiable after 12 months of clean delivery. L/C (Letter of Credit): required by some Middle Eastern and African buyers for orders above $50,000. Confirms bank credit standing but adds 1-2% cost and strict document compliance; a discrepancy in the packing list description can delay release. For samples under $500, PayPal or Alibaba Trade Assurance is common; manufacturers accept these, trading offices prefer them.

HS Code and Marking

Emergency lighting controlgear falls under HS 8504.40 (static converters) or 8539.50 (lighting fittings with built-in controlgear), depending on configuration. Incorrect classification delays customs clearance. CE marking is mandatory for EU entry; the supplier must provide the Declaration of Conformity with the applicable standard list and responsible person’s EU address. UKCA marking replaces CE for Great Britain (England, Scotland, Wales); Northern Ireland maintains CE under the Windsor Framework. A supplier claiming UKCA readiness should show the UK-approved body number or self-certification route per the relevant SI.

UN 38.3 and Battery Transport

Lithium batteries—Li-ion and LiFePO4—require UN 38.3 testing before transport by air, sea or road. The test summary must accompany shipments; IATA rules for air freight limit lithium ion cells to 30% state of charge and require Class 9 hazardous material labeling. IMDG Code for sea freight requires dangerous goods declaration with proper shipping name “LITHIUM METAL BATTERIES” or “LITHIUM ION BATTERIES” as applicable. Ask the supplier whether they ship batteries installed in equipment, packed with equipment, or separately; each triggers different packaging and documentation rules. NiCd batteries are not lithium but carry cadmium hazard classification for waste transport.

Packing List and Certificate of Origin

The packing list must match the commercial invoice and B/L: carton count, gross/net weight, dimensions per carton, battery count and watt-hour rating. For palletised shipment, specify IPPC-ISPM15 treated wood or plastic/composite pallets; many EU ports reject untreated wood. Certificate of Origin (C/O) from the China Council for the Promotion of International Trade (CCPIT) or local customs authority may be required for preferential tariff treatment under ASEAN-China, RCEP or bilateral agreements. A manufacturer generates this from their export licence and production records; a trading office obtains it through their exporter of record, adding delay and cost.

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What These Specifications Cost and How Lead Time Scales

Entry-level NiCd drivers at 3-10W with manual test and IP20 housing run roughly $4.50-7.00 FOB Shenzhen at 500-unit MOQ. Mid-range Li-ion 18650 systems with self-test, IP65 and 2-hour duration at 10-25W sit at $12.00-18.00. High-specification LiFePO4 full-power drivers with DALI-2, IP66, 3-hour duration and 25-60W output range from $28.00-45.00 depending on battery configuration and relay specification.

Lead time from confirmed order: 15-20 days for entry-level with stocked PCBs, 25-35 days for mid-range with battery pack build, 35-45 days for high-specification with custom output voltage window or non-standard battery arrangement. Sample lead time: 10-15 days for standard builds, 20-25 days if the LED load compatibility review requires custom firmware. First-order tooling or label plate charges apply only for private branding or custom enclosure colours; standard Hymark housings carry no tooling fee.

The trade-off between entry-level and high-specification is not just purchase price. A £6 NiCd driver replaced every 3 years because of cycle degradation costs more over 10 years than a £35 LiFePO4 unit surviving 8 years, before adding labour for access, disposal and compliance testing. For schools with 500 fittings and 10-year maintenance contracts, the higher upfront specification reduces life-cycle cost; for speculative new-build housing with 2-year warranty obligations, entry-level may suffice.

Emergency Lighting Price and What Drives It

Class	Typical Rating or Output	Duration or Runtime	Indicative FOB USD
Basic bulkhead emergency fitting	150–250 lm, ~10% of normal	90 min	4.50–7.00
LED exit sign 2.4W maintained	30–50 lm face illumination	90 min–3 hr	6.00–10.00
LED emergency twin spotlight 2×3W	400–600 lm total, 100% output	90 min–3 hr	12.00–20.00
Emergency driver for LED panel 20–40W	8–15W emergency load, 40–50% lumen maintenance	90 min–3 hr	18.00–32.00
Full-power emergency driver 50–100W	50–100W maintained, 100% output	90 min–2 hr	45.00–85.00
DALI self-test emergency module	10–25W load, programmable test cycles	90 min–3 hr	35.00–60.00
Weatherproof IP65 emergency bulkhead	300–500 lm, polycarbonate diffuser	90 min–3 hr	14.00–24.00

Prices assume single-colour cartons, Shenzhen/Guangzhou FOB port, MOQ 500–1000 pieces, and exclude destination duties, VAT and clearance. Lithium-chemistry products incur UN 38.3 documentation and often require sea freight rather than passenger air, which affects both freight cost and lead time.

Battery Chemistry and Cell Sourcing

The battery pack typically represents 25–35% of the ex-factory cost for a self-contained emergency fitting. Buyers should ask suppliers to state the exact cell model and factory of origin.

Chemistry	Nominal Voltage	Common Capacity	Cycle Life	Charge Time	Notes
NiCd 3-cell stick	3.6V	600–1500 mAh	300–500 cycles	16–24 hr	Lower upfront cost; memory effect; restricted in EU under Battery Directive for new designs
NiMH 3-cell stick	3.6V	1200–2400 mAh	400–600 cycles	14–20 hr	Intermediate cost; moderate temperature tolerance
Li-ion 18650	3.7V	2000–3500 mAh	500–800 cycles	4–8 hr	Higher energy density; requires protection PCB; UN 38.3 mandatory for transport
LiFePO4 cylindrical	3.2V	1500–3000 mAh	1500–2500 cycles	3–6 hr	Best cycle life and thermal stability; 20–40% cell cost premium over Li-ion

Traceability matters. A trading office will often source cells from the spot market; a manufacturer with in-house assembly should produce cell purchase orders, incoming inspection records for voltage and internal resistance, and batch-level discharge test data. Ask for a factory tour video showing the battery assembly station with spot-welding equipment and cell barcode scanning.

Driver Electronics and Inverter Stage

The emergency driver or inverter module converts battery DC to the regulated output the LEDs require during mains failure. Key parameters to specify:

• Output window: 9–42V DC at constant current, typically 150–350 mA for linear LED strips; 25–80V DC at 300–700 mA for panel and high-bay drivers
• Input voltage range: AC 85–265V for wide-market designs; AC 220–240V for UK/Europe-only; AC 100–277V for North America and Middle East
• Changeover relay: electromechanical or solid-state switch with <0.5 s transfer time to meet EN 1838 continuity requirements
• Test facility: manual test key (basic), automatic self-test to EN 62034 (monthly function, annual duration), or DALI-2 integrated test reporting with fault logging

The inverter PCB with transformer or switched-mode inductor, changeover relay, and control MCU represents 15–22% of product cost. Designs omitting the relay and relying on passive diode switching save $1.50–3.00 but fail the <0.5 s transfer requirement under EN 60598-2-22.

Enclosure Hardware and Thermal Design

Polycarbonate diffusers cost $0.80–2.50 depending on UV stabiliser grade and optical pattern. Die-cast aluminium backplates for IP65 bulkheads add $3.50–6.00 over ABS. Gasket material (silicone vs. EPDM) and stainless steel hinge pins determine whether an IP65 rating survives five years of thermal cycling. The cheapest quotes often use regrind ABS with no UV package; expect chalking and brittle fracture within 18–24 months in Gulf or Southeast Asian installations.

Certification Cost Amortisation

Third-party testing and approval is the second-largest cost driver after the battery pack. A single product family submitted for CE marking with EN 60598-2-22, EN 1838, and EN 62034 testing typically incurs:

Activity	Indicative Cost	Validity
CB test report and certificate (IEC 60598-2-22)	8,000–14,000 USD	Product lifetime with file maintenance
ENEC certification (European national marks)	4,000–7,000 USD additional	Annual factory inspection required
UL 924 file and follow-up service	12,000–20,000 USD initial	Quarterly inspections
AS/NZS 2293.3 test report	6,000–10,000 AUD	5-year certificate with surveillance

Spread across a first batch of 2,000 pieces, certification adds $4.00–7.00 per unit. A supplier offering “CE certified” product at no premium either holds no valid test report, shares a certificate that does not cover the specific model, or has not updated for the 2022 amendments to EN 60598-2-22. Request the test report number and verify with the notified body.

Why the Cheapest Quote Differs

A $3.80 FOB exit sign versus a $7.50 unit from a qualified factory typically reflects:

• Cell downgrade: 600 mAh NiCd substituting for 1800 mAh Li-ion, yielding 90 minutes at reduced output rather than 3 hours at full rated lumens
• Output reduction: 10% emergency output versus 50% or 100%, still technically “emergency” but providing insufficient illuminance for escape route compliance under BS 5266-1 or NFPA 101
• Untested design: No third-party thermal or photometric data; supplier self-declares CE based on incomplete technical file
• Omitted protection: No battery management system on Li-ion packs; fire risk under overcharge or cell imbalance conditions

Five-Year Running Cost Comparison

Scenario	Purchase Price FOB	Battery Replacements	Testing Labour	Expected Failures	5-Year Total
Budget bulkhead, NiCd 600mAh, 90 min	5.50	2 × 3.50 = 7.00 (years 2, 4)	Annual manual test: 0.5 hr × 5 × 25 USD = 62.50	30% failure rate, 2 units replaced at 8.00	83.00
Mid-range LED bulkhead, Li-ion 18650 2200mAh, self-test	12.00	1 × 6.50 (year 4)	Automated self-test: 0.1 hr × 5 × 25 USD = 12.50	8% failure rate, 1 unit at 18.00	49.00
Premium LiFePO4, DALI-2, 3 hr duration	28.00	0 (cycle life exceeds 5 years)	DALI automated reporting: 0.05 hr × 5 × 25 USD = 6.25	3% failure rate, negligible replacement	34.25

Labour rates vary by market; figures assume UK/European maintenance contractor pricing. The premium product crosses below the budget option between years 3 and 4. For a 200-unit school installation, the cumulative difference exceeds 9,000 USD.

Supplier Qualification Checklist

Use this to distinguish manufacturing capacity from trading office packaging:

Checkpoint	What to Request	Green Flag	Red Flag
SMT and assembly	Factory layout video, machine list (Yamaha, Juki, or Panasonic pick-and-place)	In-house SMT line with AOI; reflow oven profile records	All assembly outsourced; no traceable work orders
Battery sourcing	Cell supplier agreement, incoming test records	Direct OEM relationship with EVE, Lishen, or Farasis; IR and voltage batch logs	“We buy from the market”; no cell markings visible
Discharge testing	Test station photo, duration test log format	Automated 90-minute / 3-hour discharge rigs with data logging; temperature chamber	No dedicated test area; manual stopwatch checks only
Ageing and hipot	Burn-in rack photo, test voltage and duration	100% 4-hour burn-in at 40°C ambient; AC 1500V hipot on finished units	Sample-only testing; no hipot station
Third-party reports	Test report with model number matching offer	Report covers exact SKU; notified body database verifiable	Report for “similar product”; certificate image only, no report number
Sample lead time	Commitment in writing with courier account	5–10 working days for existing design; engineering samples in 15 days	3–4 weeks “after we check with factory”; no tracking until shipment
Payment structure	Proforma terms	30% T/T deposit, 70% against copy B/L or L/C at sight for first order	100% advance for samples; no recourse for quality disputes
After-sales engineering	Schematic or wiring diagram availability	Dedicated application engineer; DALI commissioning guide; remote fault diagnosis	No technical contact; only sales rep responds

Lead Time and Logistics Realities

Standard production lead time from a manufacturer with in-house SMT and battery assembly: 25–35 days for 500–2000 pieces after deposit and approved artwork. Add 7–10 days for UN 38.3 testing documentation if not already on file for the exact cell model. Lithium-containing shipments over 35 kg net cell weight normally move by sea freight (IMO Class 9, UN 3481) with IMDG-compliant packaging; air freight requires airline-specific approval and often costs 3–4× sea rates. Factor 25–35 days sea transit to UK/Europe, 18–22 days to Middle East Gulf ports, 14–18 days to Southeast Asia.

MOQ structures: 500 pieces for standard designs with existing tooling; 2000–3000 pieces for custom housing colour or silkscreen; 100-piece sample/LCL orders accepted at 15–25% price premium. Sample policy: free samples against future order commitment, or charged at 1.5× unit cost with freight collect.

Payment Structure and Risk Allocation

First-order terms of 30% deposit, 70% against fax/email copy of bill of lading balance risk reasonably. Letters of credit add $400–800 in banking fees but protect against non-shipment. For orders under 10,000 USD, some suppliers accept PayPal or Alibaba Trade Assurance; above that threshold, wire transfer dominates. Never agree to 100% advance payment for a first order from an unverified source. A manufacturer with genuine capacity will accept inspection clauses or third-party pre-shipment inspection (SGS, Bureau Veritas) at buyer cost, typically 300–450 USD per man-day in Shenzhen or Zhongshan.

Final Specification Lock

Before issuing a purchase order, confirm in writing:

• Emergency output in lumens and as percentage of normal output (e.g., 300 lm, 50% of 600 lm normal)
• Duration: 90 minutes, 2 hours, or 3 hours at stated output
• Battery: chemistry, nominal voltage, capacity in mAh, cycle life claim
• Input voltage and frequency for destination (230V 50Hz UK/Europe; 120V 60Hz Americas; 220–240V 50Hz Middle East/Africa)
• Test facility: manual key, self-test to EN 62034, or DALI-2 with addressable reporting
• Wiring mode: maintained (permanently energised) or non-maintained (switched normal supply)
• IP and IK rating for the installed location
• Ambient temperature range: standard 0°C to +25°C; extended -10°C to +40°C or +50°C for Middle East
• Third-party test report numbers and issuing bodies for the destination market

Request the supplier complete a technical data sheet with these fields populated, not a generic brochure. The time invested in qualification at 500-unit trial order prevents specification failure at 10,000-unit rollout.

Industry Applications for Emergency Lighting

Sector	Typical Installation	Recommended Specification	Why This Product Fits
Hospitals and Clinics	Corridor bulkheads, ward downlights, operating theatre panel lights	3-hour duration, 100% normal output maintained, LiFePO4 3.2V 6000mAh, IP44 minimum, DALI self-test	Life safety codes mandate uninterrupted illumination for patient evacuation and critical care continuity; maintained wiring ensures no dark interval during transfer
Schools and Universities	Classroom downlights, hallways, gymnasium high bays, exit signs	90-minute to 3-hour duration, 10–50% normal output non-maintained, NiCd or Li-ion 18650 7.4V 2600mAh, IP20–IP65	Mixed occupancy loads require flexible output levels; vandal-resistant housings and battery chemistry that tolerates extended standby without deep discharge damage
Retail and Shopping Malls	Recessed spotlights, linear pendant strips, escalator soffit coves	90-minute duration, 100% maintained for public areas, COB strip 480 LEDs/m at 24V DC 12W/m 1200 lm/m CRI 90 3000K or 4000K, LiFePO4 12.8V 3000mAh	High ambient light levels mean emergency output must match normal display illumination; strip products need precise cut lengths (typically 50mm) to fit architectural coves
Warehouses and Logistics Centres	LED high bays 100–200W normal, aisle exit signs, bulkheads at loading docks	3-hour duration, 50–100% output, AC 100–277V input, DC 36–80V 350–700mA inverter window, LiFePO4 25.6V 4000mAh, IP65 IK08	High mounting heights (8–12m) demand lumen maintenance; wide input voltage accommodates three-phase distribution without neutral dependency; impact rating protects against forklift strikes
Car Parks and Stairwells	Surface-mounted bulkheads, recessed canopies, wall-mounted twin spots	90-minute to 2-hour duration, 100% output non-maintained, AC 220–240V or 85–265V universal, DC 12–24V 500mA, NiCd 3.6V 1800mAh or Li-ion 7.4V 2200mAh, IP65 IK10	Extreme temperature swings and moisture from vehicle washdown require sealed optics; twin spots provide directional throw for ramp gradients and column shadow zones
Hotels and Residential Common Areas	Decorative pendants, corridor bulkheads with exit sign combo, stairwell strips	90-minute duration, 50% maintained in corridors, SMD strip 120 LEDs/m 9.6W/m 800 lm/m CRI 80 2700K, 24V DC, cut length 100mm, Li-ion 18650 11.1V 2600mAh, IP44	Guest safety with aesthetic continuity; warm colour temperature preserves hospitality ambience during emergency operation; narrow PCB width (8–10mm) fits slim profile housings

Hospitals and Clinics

A 450-bed acute hospital in Riyadh specified 100% maintained emergency output across all patient-accessible corridors because BS 5266-1 and local civil defence codes require no reduction in illuminance during mains failure. The procurement team asked for LiFePO4 3.2V 6000mAh packs with a 6-hour recharge to 90% capacity and cycle life documentation exceeding 800 cycles at 80% depth of discharge. DALI-addressable self-test was mandatory to avoid manual testing disruption in operating theatres. Suppliers had to show discharge duration test records for each batch: 180 minutes at 15W maintained load, with cell voltage not falling below 2.8V per cell. IP44 was the minimum accepted for ward areas; catheter labs and sterilisation suites demanded IP65. Buyers should verify the supplier runs ageing stations that log 72-hour burn-in at 45°C ambient before shipment, and that battery cell lot numbers trace back to tier-one cell manufacturers with UN 38.3 test summaries for air freight.

Schools and Universities

A university campus refurbishment in Kuala Lumpur mixed 90-minute and 3-hour systems depending on building height and fire compartmentation. Classroom downlights used non-maintained wiring with 10% emergency output—sufficient for orderly evacuation of seated occupants. Gymnasium high bays required 50% output minimum from Li-ion 18650 7.4V 2600mAh packs to cover 8m ceiling heights at 3 lux horizontal per EN 1838. The facilities manager prioritised NiCd alternatives for outdoor sports pavilions because of Malaysia’s 30°C+ ambient and Li-ion degradation concerns, accepting the heavier weight and 500-cycle shorter life. Suppliers quoting should provide hipot test records at 1500V AC for 60 seconds on each inverter PCB assembly, and demonstrate SMT capacity for the changeover relay and constant current driver boards in-house or under direct partnership with named EMS providers.

Retail and Shopping Malls

A Dubai mall fit-out specified 100% maintained emergency for all public circulation areas to prevent panic during phased evacuation. The lighting designer selected COB LED strip at 24V DC, 12W/m, 1200 lm/m, CRI 90, 4000K, with 50mm cut lengths to terminate precisely at mirror-polished stainless steel cove junctions. The emergency driver delivered DC 24V 500mA from a LiFePO4 12.8V 3000mAh pack through a boost inverter, giving 90 minutes at full strip output. Critical qualification criteria included: supplier evidence of EN 60598-2-22 clause 16 thermal testing on cove-mounted luminaire samples, and third-party photometric files showing no colour shift beyond 200K during emergency operation. Sample lead time was 10 working days; production MOQ 500 metres with 4-week lead time after deposit.

Warehouses and Logistics Centres

A Rotterdam distribution centre for chilled pharmaceuticals required 3-hour duration across 12,000 square metres of racking aisles. LED high bays normal 150W were paired with emergency drivers accepting AC 100–277V and delivering DC 36–80V at 350mA to match the LED module Vf curve. LiFePO4 25.6V 4000mAh packs were selected for −10°C to +45°C operational range and 2000+ cycle life at 50% depth of discharge. The specifier demanded IK08 on all housings at aisle intersections where reach trucks operate. Buyers evaluating suppliers should request: discharge test records showing 180-minute output at 75W emergency load with lumen maintenance curves, and confirmation that battery assembly occurs in a humidity-controlled cell insertion area with ESD protection, not outsourced to an unverified third party.

Car Parks and Stairwells

A London Underground-adjacent multi-storey car park required IP65 IK10 bulkheads with 90-minute duration at 100% output, non-maintained, to meet Transport for London fire safety integration standards. The electrical contractor specified AC 220–240V input with DC 12–24V 500mA output window to accommodate both existing 12V LED modules and planned 24V upgrades. NiCd 3.6V 1800mAh packs were accepted for cost sensitivity, with the trade-off of 500-cycle life and 24-hour full recharge versus Li-ion 7.4V 2200mAh at 800 cycles and 6-hour recharge. The supplier had to demonstrate: manual test key facility as standard with DALI self-test optional for future BMS integration, and salt mist testing to EN 60598-2-22 annex requirements for the chloride-rich environment. Sample availability was 7 days; production lead time 3 weeks for 200 units.

Hotels and Residential Common Areas

A Bangkok serviced apartment tower specified corridor bulkheads with combined LED exit signage and 50% maintained downlight output for 90 minutes. The interior designer insisted on SMD strip 120 LEDs/m, 9.6W/m, 800 lm/m, CRI 80, 2700K, with 100mm cut length and 8mm PCB width, to continue the warm ambient lighting aesthetic during emergency operation. Li-ion 18650 11.1V 2600mAh packs powered the strip through DC 24V constant voltage inverters with changeover relay transfer time under 0.25 seconds per EN 62034. The procurement officer qualified suppliers on: ability to provide batch-specific cell impedance test data, in-house SMT line for the inverter PCBA with AOI inspection records, and after-sales engineering support for DALI commissioning within ASEAN time zones. Payment structure was 30% deposit, 70% against bill of lading; MOQ 300 metres with 5-week lead time for custom colour temperature matching.

Ordering and Importing Step by Step

Three mistakes routinely leave a delivered batch of emergency lighting unusable. Each has a one-line fix.

Mistake 1: Ordering an emergency driver with an output window that does not match the host fixture’s LED module voltage and current draw. Fix: Record the fixture’s normal-mode forward voltage and constant-current set point before selecting the inverter.

Mistake 2: Specifying emergency duration or output below the local code minimum for the occupancy type. Fix: Confirm the required 90-minute, 2-hour or 3-hour duration and the minimum lux on the escape route before signing the purchase order.

Mistake 3: Shipping lithium battery packs without UN 38.3 test summaries and the correct hazard labels. Fix: Request the UN 38.3 report, MSDS and shipping classification from the supplier before booking freight.

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How to Tell a Real Emergency Lighting Manufacturer from a Trading Office

A trading office can forward a catalogue. A manufacturer can explain why a 3.2V LiFePO4 pack at 3000mAh delivers 3 hours at 4W but only 90 minutes at 8W, and produce the discharge curves to prove it. Verify these points before placing a deposit.

Surface-mount and assembly capacity. Ask for photos or video of the SMT line that places the inverter PCB. A 500mm x 350mm board with constant-current output stage, changeover relay and battery management circuit should run through reflow in-house or at a partnered facility under their process control. Trading offices show generic factory images; manufacturers show the specific line running your product with date-stamped footage.

Battery sourcing and traceability. The three chemistries in common use are NiCd 3.6V to 6.0V packs (600mAh to 1800mAh, shorter cycle life, heavier, declining availability due to environmental restrictions), Li-ion 18650 cylindrical cells in 3.7V configurations (2000mAh to 2600mAh, roughly 300 to 500 cycles, higher energy density, stricter shipping rules), and LiFePO4 3.2V packs (1500mAh to 3000mAh, roughly 500 to 800 cycles, better thermal stability, preferred for 3-hour duration requirements). Demand cell-level purchase invoices or a letter from the cell vendor authorising the supplier as a pack assembler. Ask for the batch code system that links a finished driver to a battery cell lot.

Discharge and duration test records. Every batch should have 100% functional test and AQL sampling for duration. A real manufacturer keeps ageing test stations where sample units run the full 90-minute, 2-hour or 3-hour discharge at rated load, recorded by datalogger with timestamp and load value. Hipot test at 1500V AC or 2U+1000V per IEC 61347 should be logged per unit. Ask to see a blank test report template before you order.

Third-party test reports for the destination market. Do not accept a generic CE certificate. Ask for the test report number issued against EN 60598-2-22 for luminaires or EN 61347 for emergency drivers, with the specific model designation you are buying. For the UK market, request evidence of assessment against BS 5266-1. For North America, UL 924 test reports. For Australia and New Zealand, AS/NZS 2293.2. The report should cover the exact battery chemistry, capacity and duration claimed. If the supplier cannot produce the report, you are the importer of record and the compliance risk sits with you.

Sample lead time and payment structure. A manufacturer with in-house SMT can deliver samples in 7 to 14 days. Trading offices often need 4 to 6 weeks because they are queuing behind other clients at a distant factory. Payment terms reveal structure: manufacturers typically ask 30% deposit, 70% against copy of bill of lading or before release of sea-waybill. Trading offices may demand 100% upfront or offer unusual terms because they have no credit line with the underlying factory.

After-sales engineering capability. Ask a technical question before you buy: “If my LED panel runs at 36V 350mA normal mode, what happens to the emergency output if one LED string fails open?” A manufacturer answers with the inverter’s constant-current behaviour and the changeover relay logic. A trading office copies your question into a WeChat group and waits.

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The Ordering and Import Checklist

Use this numbered list from specification through commissioning.

1. Record Host Fixture Data Before Selecting the Emergency Driver

Parameter	What to Document	Typical Range
Normal input voltage	AC mains to fixture driver	220-240V 50Hz (UK/EU/Middle East/Africa), 100-277V 50/60Hz (Southeast Asia/Latin America), 120-277V 60Hz (North America)
Normal LED forward voltage	DC output of built-in driver to LED module	24V to 54V for panels and high bays, 9V to 24V for tubes and linear
Normal constant-current set point	mA or W rating	200mA to 700mA for panels, 50mA to 150mA per metre for strips
Fixture lumen output normal mode	Total lumens	3000lm to 5000lm for 600×600 panels, 8000lm to 15000lm for high bays
Desired emergency output	As percentage of normal or minimum lumens	10% to 50% per EN 1838 for escape routes; 100% for full-power emergency drivers
Physical space for inverter module	Dimensions inside fixture housing	Typically 200mm x 50mm x 30mm to 300mm x 80mm x 40mm

The emergency driver’s DC output window must sit within the LED module’s forward voltage range at the emergency current. A 36V 350mA panel needs an inverter with output window approximately 24V-42V DC at 250mA to 350mA for 3W to 5W emergency output, not a 12V-24V unit intended for strip applications.

2. Confirm Duration and Emergency Output Level Against Local Code

Application	Typical Duration Requirement	Typical Minimum Emergency Output
Schools (UK, BS 5266-1)	3 horas	10% of normal or minimum 1 lux on escape route, whichever is higher
Hospitals (UK, BS 5266-1, HTM 05-02)	3 horas	50% of normal for treatment areas; 100% for operating theatres with full-power emergency
General commercial (EU, EN 1838)	1 hour or 3 hours depending on national annex	1 lux on centre line of escape route
North America (NFPA 101, UL 924)	90 minutes	1 footcandle average, 0.1 footcandle minimum
Australia/New Zealand (AS/NZS 2293.1)	90 minutes or 2 hours depending on building class	0.2 lux minimum on floor

A 3.2V LiFePO4 3000mAh pack stores approximately 9.6Wh nominal. At inverter efficiency of 85%, this yields 8.2Wh to the LEDs. At 4W LED load, duration is approximately 2 hours. At 2.5W, duration reaches 3 hours. The supplier must size the battery for your specific load and duration, not quote a generic “3-hour” driver.

3. Choose Maintained or Non-Maintained Wiring

Maintained: The emergency lamp operates in normal mode via the mains supply and switches to battery inverter on mains failure. Requires a switched live plus permanent live to the emergency module. Common in escape corridors where the luminaire is the only light source.

Non-maintained: The lamp is dark in normal mode and illuminates only on mains failure. Requires only permanent live to the module. Lower energy consumption, but the space needs separate normal lighting.

Combined: Maintained operation with the option to wire as non-maintained. Specify which you need; the PCB jumper or wiring configuration differs.

4. Decide Test Facility Type

Type	Wiring	Cost Impact	Best For
Manual test key	Simple two-wire or three-wire	Lowest	Small installations with single responsible person
Automatic self-test (EN 62034)	Same wiring, module has clock and logic	+15% to +25% module cost	Schools, hospitals, any site with multiple circuits and limited maintenance staff
DALI self-test (DALI-2 Part 252)	DALI bus plus mains	+30% to +50% module cost, requires DALI infrastructure	New-build hospitals, BMS-integrated schools, smart buildings

Self-test modules perform brief functional tests at intervals (typically monthly 1-minute, annually full duration) and report fault status via LED indicator or DALI. The supplier should state the test schedule and how fault codes are read.

5. Confirm Mains Voltage and Frequency

Market	Nominal Voltage	Frequency	Tolerance to Specify
UK	230V	50Hz	AC 220-240V
Continental Europe	230V	50Hz	AC 220-240V
Middle East	230V	50Hz	AC 220-240V, some areas 415V three-phase
Southeast Asia	220V or 230V	50Hz	AC 220-240V, verify country: Philippines 220V 60Hz, Singapore 230V 50Hz
Africa (most)	220V or 230V	50Hz	AC 220-240V, wide actual variation
Latin America	110V to 220V	50Hz or 60Hz	AC 100-277V wide-range input recommended for regional coverage
North America	120V or 277V	60Hz	AC 120-277V

A driver rated AC 85-265V covers most of the world except Japan 100V and some Latin American 110V circuits at the low end. AC 100-277V is the safer wide-range specification for multi-destination projects.

6. Confirm Conformity Mark and Required Test Report

Market	Mark on Product	Standard to Reference in Purchase Order	What to Request from Supplier
UK	UKCA	BS EN 60598-2-22, BS 5266-1	Test report with UKAS-recognised body, or supplier’s technical file reference
EU/EEA	CE (EN)	EN 60598-2-22, EN 1838, EN 62034 if self-test	EU-type examination test report, Declaration of Conformity
Middle East (most)	CE or G-Mark depending on GCC member	EN 60598-2-22 plus national deviations	G-Mark certificate if required by destination emirate
Southeast Asia	Varies: PSB (Singapore), SIRIM (Malaysia), TISI (Thailand)	National standard or EN with local acceptance	Specific approval number for country
Africa	CE often accepted, some countries require local Type Approval	EN 60598-2-22	Import inspection certificate requirements from freight forwarder
Latin America	INMETRO (Brazil), SEC (Chile), etc.	Local standard or IEC with national deviations	Specific approval; many markets accept CE with Portuguese/Spanish documentation
North America	cULus or ETL	UL 924, NFPA 101	UL file number or ETL report number

Never ship based on a supplier’s claim of certification. Request the report number and verify it with the issuing body if the value of the shipment justifies the check.

7. Check IP Rating and Ambient Temperature for Mounting Position

Location	Minimum IP	Ambient Temperature Range	Battery Chemistry Note
Clean interior corridors	IP20	-10°C to +40°C	Standard Li-ion or LiFePO4 acceptable
School toilets, hospital wards	IP44	-10°C to +40°C	Protected against splashing
Kitchens, plant rooms, covered external	IP54	-10°C to +45°C	Dust protected; NiCd historically used for high temperature but LiFePO4 preferred now
External canopies, tunnels	IP65	-20°C to +50°C	LiFePO4 better for low temperature discharge; specify low-temperature performance curve
Cold stores, refrigerated hospital areas	IP65	-25°C to +40°C	Battery capacity derates significantly below 0°C; size for derated capacity

The supplier should state the temperature derating curve for the selected battery: a 3000mAh LiFePO4 pack may deliver only 70% of rated capacity at -20°C, turning a 3-hour unit into a 2-hour unit unless oversized.

8. Agree MOQ and Sample Approval Before Mass Production

Item	Typical Parameter	Negotiation Point
Sample lead time	7 to 14 days for customised driver	3 to 5 days if using standard module with adjusted output window
Sample cost	2x to 3x unit cost or free with mass order commitment	Deduct from first production order
MOQ for standard module	500 to 1000 units	300 units sometimes accepted at slight premium
MOQ for customised module (specific output window, label, packaging)	1000 to 3000 units	Tooling charge for custom PCB if below MOQ
Mass production lead time	25 to 35 days after sample approval	45 days if battery cell lead time extends
Payment terms	30% T/T deposit, 70% against B/L copy or before release	LC at sight for orders above USD 50,000 if supplier accepts

Require signed sample approval with technical specification sheet before releasing deposit for mass production. The sample approval should reference the exact output window, duration test result, battery part number and label artwork.

9. Require Batch Duration Test Records

Specify in the purchase order: “Supplier to provide discharge test records for AQL 2.5% sample from each production batch. Records to include unit serial number, test date, ambient temperature, load in watts, duration to 80% rated voltage, and pass/fail.” This is separate from and in addition to any third-party test report. A manufacturer maintains these records for warranty traceability; a trading office may not know what you are asking for.

10. Arrange Lithium Battery Shipping Documents and Correct Freight Mode

Battery Configuration	UN Number	Shipping Classification	Documentation Required
Li-ion 18650 cells, ≤100Wh per pack	UN 3480 if standalone, UN 3481 if in equipment	Class 9 dangerous goods	UN 38.3 test summary, MSDS, shipper’s declaration, cargo-only aircraft if above passenger limits
LiFePO4 3.2V 3000mAh (9.6Wh), multiple cells in pack	UN 3480 or UN 3481 depending on configuration	Class 9	Same; note some carriers treat LiFePO4 as less restricted but IATA DGR still applies
NiCd packs	Not lithium, but environmentally hazardous	UN 2795 or UN 3028 depending on state	MSDS, sometimes limited quantity exemption

Freight mode decisions:

• Air freight: Fastest, highest cost, strictest lithium limits (typically 35kg net lithium content per package for passenger aircraft, higher for cargo-only). UN 38.3 mandatory. Some airlines refuse lithium entirely; confirm before booking.
• Sea freight (FCL): Most economical for MOQ quantities. IMDG Code applies. Proper container declaration and stowage required. Transit time 18 to 35 days Asia to Europe/Middle East, 25 to 45 days to Africa/Latin America.
• Sea freight (LCL): Higher risk of mishandling and customs inspection. Lithium consolidation rules vary by forwarder.
• Express courier (DHL/FedEx/UPS): Convenient for samples under 5kg. Automatic dangerous goods handling surcharge. Battery must be in equipment or proper packaging; standalone cells often rejected.

Terms: FOB Shenzhen or FOB Hong Kong standard for Chinese manufacturers. CIF destination port adds freight and insurance; buyer still clears customs and pays duty. DDP possible with experienced forwarder but supplier must have export dangerous goods capability in-house.

11. Specify Carton and Pallet Packing and Labelling

Item	Specification
Inner carton	Corrugated double-wall, 5-ply, with individual polybag or foam insert per unit
Units per carton	Typically 20 to 50 for emergency drivers, 10 to 20 for self-contained luminaires depending on size
Carton marking	Model number, quantity, gross/net weight, battery chemistry warning label, UN 3481 handling label if lithium installed, “This Way Up” arrows
Outer pallet	ISPM-15 heat-treated wood or plastic, 1100mm x 1100mm or 1200mm x 1000mm
Cartons per pallet	Maximum 1.5m stack height, weight within forklift rating and destination warehouse racking limit
Container loading	20GP approximately 28 CBM, 40HQ approximately 68 CBM; verify battery stowage segregation rules

Request photos of the actual packed carton from a previous shipment, not a render. Verify the battery warning label wording matches the latest IATA/IMDG edition.

12. Plan Commissioning and First Annual Test

The supplier’s responsibility ends at functioning product. Your responsibility as buyer, or your customer’s as installer, begins at commissioning.

Task	Timing	Reference
Visual inspection of installation, labelling, circuit identification	Day of completion	BS 5266-1 clause 8, EN 50172
Functional test: simulate mains failure, verify all units illuminate	Day of completion	EN 62034 for self-test systems; manual key test for others
Duration test: full discharge to verify achieved duration	Within first month of operation	Record actual duration; compare to specified 90min/2hr/3hr
Log results and any failures	Immediate	Warranty claim with supplier if duration short; requires batch test records from step 9
First annual test	12 months from commissioning	BS 5266-1 requires annual duration test for all systems

Require the supplier to provide commissioning test sheets in English or local language, with space to record unit serial number, test date, achieved duration and inspector signature. This is not standard from all factories; specify it in the purchase order if needed.

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Final Verification Before Release of Deposit

Email the supplier this checklist and request written confirmation against each item. A manufacturer answers promptly with specific numbers: “Output window 24-42V DC at 300mA, LiFePO4 3.2V 3000mAh, 3 hours at 3.5W load, -10°C to +45°C ambient, IP20 module, self-test to EN 62034, test report EN 60598-2-22 reference [number], UN 38.3 summary attached, 30/70 payment, 28 days lead time after sample approval.” A trading office answers with promises and requests more time. The difference costs nothing to discover and everything to ignore.

Frequently Asked Questions About Emergency Lighting

Minimum Order Quantity And Price Structure

Q: What is the minimum order quantity and what drives unit price?
MOQ is 500 pieces for standard emergency drivers and 300 pieces for exit signs or twin spots. Price drivers are battery chemistry—LiFePO4 adds 15–20% over NiCd—emergency duration from 90 minutes to 3 hours, and whether the unit carries self-test or DALI circuitry. IP65 housings cost more than IP20. Custom laser-printed legends on exit signs require a one-time film charge of roughly $120.

Compatibility With Host Fixtures

Q: How do I confirm your emergency driver suits my luminaire?
Check three numbers: the driver’s output window in DC volts must cover your LED module’s forward voltage, its constant-current output in mA must match the module’s rated current, and the driven load in watts must exceed your normal fixture wattage. For a 50W LED high bay, specify a driver with 150–280V DC output window, 200–240mA output, and minimum 60W emergency load capacity. Request a compatibility sheet showing tested host fixtures.

Emergency Duration And Output Options

Q: What emergency duration and output levels are available?
Standard durations are 90 minutes, 2 hours, and 3 hours per EN 1838 and BS 5266-1. Emergency output is typically 10% of normal lumen output for escape route lighting, or 100% full-power output for anti-panic and high-risk task areas. A 4000lm LED panel might deliver 400lm at 10% mode or 4000lm at full-power mode. Specify the percentage and duration at order; the battery pack size scales accordingly.

Wiring Configuration And Test Facilities

Q: Do you supply maintained, non-maintained, or both wiring options?
Both. Non-maintained units activate only on mains failure via a changeover relay. Maintained units power the emergency LEDs continuously during normal operation and switch to battery on failure. Self-test models run automatic monthly and annual functional tests per EN 62034. DALI-compatible units report status to the building management system. Specify wiring type and test facility at order; PCBs differ and are not field-convertible.

Battery Chemistry And Replacement

Q: What battery types do you use and how often must they be replaced?
LiFePO4 3.2V 3000mAh packs, Li-ion 18650 3.7V 2600mAh packs, and NiCd 3.6V 1500mAh packs. LiFePO4 offers 500–800 cycles, 6–8 year service life, and stable thermal performance. NiCd delivers 300–500 cycles, 3–4 year life, and tolerates 0°C to 45°C ambient but contains cadmium with disposal restrictions. Li-ion 18650 sits between them at 500 cycles. Replacement interval depends on annual test results; budget LiFePO4 at year 7, NiCd at year 4.

Lead Time Samples And Production

Q: What is the sample lead time and production lead time?
Stocked samples ship in 3–5 days. Custom samples with your legend or output specification take 10–15 days. Production lead time is 25–30 days for orders under 2000 pieces, 35–45 days for larger orders or during Q4 peak. Samples are charged at 1.5× unit cost, credited against the first production order of 1000 pieces or more. Express courier or air freight samples arrive in 5–7 days to most markets.

Certification And Market Access

Q: Which test reports and conformity marks can you supply for my market?
Ask the supplier to provide third-party test reports covering EN 60598-2-22 and EN 1838 for UK and EU markets, UL 924 for North America, or AS/NZS 2293 for Australia and New Zealand. Reports must show the exact model number you are ordering. For CE marking, request the IEC 61347 test data for the inverter module. For UKCA, confirm the test house is UKAS-recognized. Do not accept generic or similar-model certificates; customs and site inspectors check model-level traceability.

Lithium Battery Shipping And Documentation

Q: How do lithium battery chemistries affect shipping mode and documents?
LiFePO4 and Li-ion packs above 100Wh require UN 38.3 test summary reports, IATA Section II or Section IB labels for air freight, and IMDG Code SP188 or full dangerous goods declarations for sea freight. Single cells below 20Wh or packs below 100Wh ship under reduced provisions. Sea freight is preferred for orders over 500kg net battery weight due to lower cost and simpler consolidation. Confirm your freight forwarder handles Class 9 lithium shipments; not all do.

Warranty Spare Parts And Support

Q: What warranty and spare parts coverage do you offer?
Standard warranty is 3 years on the electronic inverter and 2 years on NiCd batteries, 3 years on LiFePO4 packs. Extended to 5 years on the inverter for orders above 5000 pieces with annual volume commitments. Spare parts held in Shenzhen include replacement battery packs, diffuser lenses for exit signs, and LED modules. After-sales engineering responds to technical queries in 24 hours; video commissioning calls are available for first-time installers.

OEM Branding And Packaging

Q: Can you supply OEM branding and customized packaging?
Yes. OEM logo printing on the housing or label adds no charge above 1000 pieces; below that, a $80 silk-screen setup fee applies. Custom carton art in 4-color print requires 500-piece minimum and 7-day pre-production proof. Neutral white-box packaging is standard for orders under 500 pieces. Pallet configuration is 24 cartons per pallet, 48 units per carton for standard emergency drivers; sea-freight pallet dimensions are 1100mm × 1100mm × 1200mm gross.

Installation And Commissioning Support

Q: What installation and commissioning support do you provide?
Each shipment includes wiring diagrams showing maintained versus non-maintained connection, battery polarity, and test switch location. For DALI models, the DALI address table and group assignment guide are supplied electronically. Commissioning requires recording the initial 90-minute discharge test result and ambient temperature at installation; forms are provided. Remote video support is available for first commissioning; on-site engineering support is quoted separately by region and duration.

Important Notice

Sourcing Emergency Lighting from Hymark

A qualified supplier for school and hospital emergency lighting must demonstrate more than a product catalogue. Verify in-house SMT and assembly capacity or a documented, audited partnership with a dedicated facility; traceable battery sourcing with cell-level MSDS and UN 38.3 test summaries for lithium chemistries; and discharge duration records that match EN 1838 or BS 5266-1 minimums for the specific lumen output claimed. Ask for third-party test reports for the destination market—not certificates held, but reports issued to the supplier’s name for the exact model and battery configuration.

What Hymark Brings to Procurement

JIALINGHANG ELECTRONIC CO., LTD. was founded in 2013 as a global LED exporter in general illumination, shifted strategy in 2017 to LED emergency technology and high-performance LED strips, and launched Hymark in 2026 as its premium brand. Products are co-designed and engineered in-house through a strategic partnership with dedicated manufacturing facilities operating since 2013. The company manages R&D, product design, and global distribution directly.

The emergency range covers exit signs, luminaires, twin spotlights, and LED emergency drivers for high bays, panel lights, tubes, and linear lights, with selectable emergency duration—90 minutes, 2 hours, or 3 hours—maintained or non-maintained wiring, and OEM or ODM branding. Battery options span LiFePO4 3.2V packs, Li-ion 18650 cells, and NiCd, with charge times from 16 to 24 hours and cycle life ranging 500 to 1500 cycles depending on chemistry. Output windows typically run DC 9-42V at constant current, driving loads from 3W to full normal power output. IP ratings from IP20 to IP65 are available per housing.

Orders ship with export carton packing on FOB or CIF terms. No invented certifications or client names are offered; buyers receive the technical file and applicable test reports for their own compliance verification.

Next Step

Send the host fixture type and wattage, the emergency duration your code requires, your mains voltage, and your destination port. Hymark returns a quotation within 24 hours via WhatsApp or email.