How Long Do LED Emergency Lights Stay On During a Power Outage?

Most LED emergency lights are designed to operate for a minimum of 3 hours, which complies with UK fire safety regulations. However, the duration can vary depending on several factors:

• Battery Capacity – Higher capacity batteries last longer. 
• Light Output (Wattage) – Brighter lights may deplete the battery faster.
• Self-Test and Maintenance – Regular testing ensures the battery is in good condition for optimal performance.

For environments like offices, commercial buildings, and public spaces, 3-hour emergency lighting is standard, ensuring safe evacuation and compliance with British Standards (BS 5266-1:2016).

If your emergency lights are not lasting as expected, the battery may need replacing or servicing.