Frequently Asked Questions

An emergency LED driver operates for a code-specified duration during a mains failure — typically 90 minutes (UL 924) or 3 hours (some hospitals, tunnels and high-rise buildings). XGW offers both 90-minute and 3-hour LiFePO4 versions; the backup duration is set by battery capacity while the driver topology stays the same. Always confirm the local code (EN 1838, UL 924, NFPA 101) before specifying.

Yes, and it is the recommended upgrade. LiFePO4 delivers 2,000+ charge cycles vs ~500 for NiCd, no memory effect, better high-temperature reliability, 1/3 the weight and no cadmium disposal issues. The total cost of ownership favors LiFePO4 within the first battery replacement cycle, and UN38.3-certified LiFePO4 modules simplify air and sea shipping.

The difference is battery capacity only. A 3-hour emergency driver doubles the LiFePO4 battery energy while keeping the same charging circuit and output stage, so the fixture maintains its emergency light output (typically 1-8W of emergency mode power) for three hours instead of 90 minutes. Most commercial buildings use 90-minute drivers; hospitals, tunnels and high-rise buildings often require 3-hour versions.

Codes such as EN 50172 and NFPA 101 require periodic testing of emergency lighting. A self-test emergency LED driver performs monthly short-duration and annual full-duration tests automatically, showing pass/fail on a status LED and eliminating manual testing labor. For facilities with many fixtures, self-test is the only practical way to stay compliant and keep an audit trail.

Yes. A DALI-compatible emergency LED driver integrates with networked lighting control, enabling remote test scheduling, status monitoring and failure alerts through the DALI bus. Facility managers can monitor hundreds of emergency drivers from one interface, which is especially valuable in large commercial buildings.

Emergency LED drivers (1-40W) work with most constant-current LED fixtures: UFO high bays, tri-proof lights, street lights, tunnel lights, panel lights, parking garage luminaires, downlights and linear fixtures. Confirm the fixture's LED forward voltage and operating current match the emergency driver's output range before specifying.

XGW Digital Technology (Shenzhen) Co., Ltd. is a professional manufacturer of LED drivers, switching power supplies and lithium battery ESS products, founded in 2009 and based in Shenzhen, China.

Our Shenzhen factory runs automated SMT lines producing 5+ million units per month across LED drivers and power supplies, supported by 600+ employees including 37 senior R&D engineers.

Yes. OEM/ODM is a core business. We customize output voltages, connectors, dimming protocols, housings, labels and packaging. MOQ starts at 500-1,000 units depending on the level of customization.

UL, CE, CB, RoHS, PSE, SAA, DALI 2.0, Zhaga D4i, UN38.3 and IEC 62619, produced under an ISO 9001 quality management system.

LED drivers carry a 5-year warranty, power supplies 2-3 years and battery ESS products 5 years. All units pass 100% full-load burn-in testing before shipment.

Standard products ship in 7-15 days. OEM/ODM projects typically need 25-35 days including customization. Samples are available within 3-7 days.

We export to 50+ countries with major markets in North America, Europe, the Middle East, Southeast Asia and Latin America.

Email sales@xgwtech.com, call/WhatsApp +86 17369238166, or use the contact form on this site. Our engineering team responds within 24 hours on business days.