Emergency Lighting
Self-contained backup for code-compliant egress.
How Does an Emergency LED Driver Work?
Emergency LED Driver Selection Guide: Power, Battery, Codes & FAQ
EN 1838 and UL 924: Emergency Lighting Compliance
Related products
Emergency LED Driver
Self-contained emergency drivers
Emergency LED Drivers
Full emergency range
Applications
Exit & emergency signs
Self-contained emergency drivers keep exit signs lit for the required duration on mains loss.
Emergency luminaires
Fit into downlights and battens so the whole fixture switches to battery on failure.
Tunnels & transit
UL924 drivers hold egress lighting through long outages in harsh environments.
Commercial buildings
Code-compliant backup for offices, schools and retail on the same fixture.
Emergency LED Driver vs Central Battery vs Inverter
Emergency lighting can be decentralized at the fixture or centralized at a battery room.
| Location | Inside each fixture | Central room | Near load |
|---|---|---|---|
| Install | Per-luminaire | Building-wide | Per circuit |
| Maintenance | Self-test per unit | Central check | Per inverter |
| Best for | Retrofit, scattered | Large new builds | Small zones |
Use an emergency LED driver for per-fixture, code-compliant backup and easy retrofit. Use central battery for large new constructions.
Frequently Asked Questions
What does UL924 require?
UL924 lists emergency lighting equipment that must supply required illumination for at least 90 minutes on mains failure.
How long must emergency lights run?
Typically 90 minutes at code minimum; XGW drivers are rated for the full duration with self-test.
Constant current or constant voltage driver?
Match the LED module: constant current for fixed-current boards, constant voltage for strips and bars.
Do emergency drivers self-test?
Yes. XGW self-test drivers run monthly and annual checks and flag faults via indicator, cutting manual walk-throughs.
Need a Custom Power Solution?
37 senior R&D engineers. OEM/ODM from 500 units. Samples in 3-7 days.
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