List of featured suppliers of LIGHTS: EXTERIOR Emergency BS 4533 on Building Products Index
Lights that are installed on the outside of a building are known as exterior lights. Emergency lights are those that are powered by a backup generator or battery, and are intended to remain illuminated during power outages or other emergency situations. BS 4533 refers to the British Standard that outlines guidelines for the installation of emergency lighting systems in commercial and industrial buildings. These lights are designed to provide additional safety and illumination in the event of an emergency, such as a fire or threat to personal safety.