How Bright Should an LED Emergency Exit Sign Light Be?

An LED emergency exit sign should provide sufficient luminance and contrast for the escape sign to remain clearly identifiable in the relevant lighting conditions. UK emergency lighting requirements cover the photometric characteristics of internally illuminated escape route signs, rather than simply specifying a single brightness figure for every installation.

What Illumination Is Required Along a UK Escape Route?

For defined escape routes, BS 5266-1:2025 recommends a minimum horizontal illuminance of 1 lux across the escape route, subject to the standard's conditions. Emergency lighting should also be provided at important points such as exits, stairs, changes of direction and corridor intersections.

How Do You Choose the Right LED Emergency Exit Sign?

Choose an LED emergency exit sign based on the required viewing distance, mounting position, maintained or non-maintained operation, emergency duration and applicable UK requirements. The sign should be clearly visible from the relevant approach to the exit and installed according to the emergency lighting design.