UL 924 Emergency Lighting Guide
UL 924 is the emergency lighting and power equipment standard buyers most often encounter when selecting exit signs, emergency luminaires, unit equipment, emergency ballasts, inverters, and related backup power devices.
Shop related products
Common product paths
| Project question | Product path |
|---|---|
| Need egress lights that operate during power loss? | Shop emergency lights |
| Need marked exit doors or directional egress signage? | Shop exit signs |
| Need signage and lighting in one fixture? | Shop combo units |
| Need damp or exterior egress coverage? | Shop wet-location emergency lights |
Selection reminders
- Match product listing, voltage, mounting, environment, and battery/runtime needs before ordering.
- Confirm whether the project calls for fixture-level emergency lighting, remote heads, battery backup, an inverter, or replacement emergency ballasts.
- Use published cut sheets and installation instructions when comparing replacement options.
Official references
Code note: This guide is a purchasing and planning aid, not a code determination. Confirm final requirements with the authority having jurisdiction, adopted code edition, engineer of record, and project documents.