UL-924 & UL-1008 Emergency Lighting Controls
Emergency lighting compliance is non-negotiable — and it goes beyond a single standard. We have deep expertise in both UL-924 (Emergency Lighting Equipment) and UL-1008 (Transfer Switch Equipment), ensuring your emergency lighting control systems are programmed and verified to meet all applicable codes and standards.
TL;DR: Whether it's ensuring proper transfer switch coordination, verifying bypass relay behavior, or confirming that emergency circuits respond correctly under fault conditions — we cover every layer of compliance.
What we do
- UL-924 compliance review and programming for emergency lighting equipment
- UL-1008 transfer switch coordination with lighting control systems
- Emergency circuit verification — confirming correct behavior under fault conditions
- Bypass relay behavior and fault response testing
- Code-compliant programming for emergency and egress lighting systems
- Integration with life safety and fire alarm systems
- Documentation for inspection and compliance verification
UL-924 vs UL-1008: What's the difference?
Emergency Lighting Equipment
Covers the equipment that provides emergency illumination when normal power fails — including emergency ballasts, drivers, inverters, and the bypass relays that switch circuits to emergency mode.
- Bypass relay programming and verification
- Emergency driver behavior under fault
- Egress path illumination compliance
- Test and monitoring functionality
Transfer Switch Equipment
Covers the automatic and manual transfer switches that move electrical loads between normal and emergency power sources — critical for ensuring lighting controls respond correctly during power transitions.
- Transfer switch coordination with controls
- Load shedding and priority sequencing
- Generator/UPS transition behavior
- Re-transfer and recovery programming
Why this matters
Emergency lighting failures put people at risk.
When normal power fails, occupants depend on emergency lighting to safely exit the building. If the lighting control system doesn't hand off correctly to emergency circuits — or if bypass relays aren't programmed properly — egress paths go dark. That's a life safety failure.
We verify that every emergency circuit, bypass relay, and transfer switch behaves exactly as required — not just on paper, but in the field.
Our process
- 1
Review emergency lighting design intent
Drawings, sequences of operation, emergency circuit identification, and applicable code requirements.
- 2
Verify emergency circuit identification
Confirm which circuits are designated emergency, which devices are on bypass relays, and how transfer switches are configured.
- 3
Program emergency behavior
Configure bypass relays, emergency scenes, fault response behavior, and transfer switch coordination within the lighting control system.
- 4
Functional testing under fault conditions
Simulate power loss and verify that emergency circuits respond correctly — lights come on, bypass relays engage, transfer switches coordinate properly.
- 5
Documentation and sign-off
Document test results, emergency circuit maps, and compliance verification for inspection and turnover.
Who this is for
- Electrical contractors installing emergency lighting systems
- General contractors needing compliance verification before turnover
- Facility managers responsible for ongoing emergency lighting compliance
- Engineers and designers specifying emergency lighting controls
- AHJs (Authorities Having Jurisdiction) requiring third-party verification
Need emergency lighting compliance support?
Send us your emergency lighting drawings and system details. We'll help you verify compliance and close out safely.
Contact Wilco Services