In the event of failure of normal lighting, alternative measures are required for security purposes. Emergency lighting should be installed to provide initial illumination. These units are normally battery-type equipment that serves as backup for regular lights. There are different kinds of emergency lighting. Batteries are microsystems that light up each lighting unit. These are self-contained. Some lighting systems are powered from a central battery. Others have special conversion centers that convert fluorescent lighting for emergency use.

Certain places have been identified as needing emergency lighting. These are

~Stairway area
~Near changes of direction
~Intersection of corridors
~Exit doors
~Near each piece of fire-fighting equipment or manual call points
~First Aid points Other areas that will profit from emergency lighting are elevators and moving walkways, toilets and pedestrian routes within a covered car park.