Emergency Lighting

Emergency lighting switches on automatically when a building experiences a power outage. In addition to illuminated exit and emergency directional signs, products include automatic, standby, emergency, and auxiliary electric power equipment of all voltages that incorporate a charging means, a battery, and a switchover device to activate emergency and egress lighting when the power goes out.

Emergency lights and exit signs consist of a lighting source, a device to focus and intensify the light, a backup power supply, and a test function. The lights consist of clusters of high-intensity light-emitting diodes (LEDs). Battery backup ballasts may be installed to automatically switch into emergency mode. Modern fixtures may also include a small transformer that steps down the voltage from main current to the required low voltage.

Through NEMA, Members promote reasonable, repeatable, and unburdensome product test procedures and performance criteria that are required for regulatory bodies and certification labs.