The general term of lamps for emergency lighting. The fire emergency lighting system mainly includes emergency lighting, emergency exit signs and indicators, which are set to guide the evacuation of trapped people or carry out fire fighting and rescue operations after the normal lighting power is cut off in case of fire.

It originated from 1995 to 1996. Because it was like the sun, people in the industry at that time called it "Sunlight". Before 2000, ceiling lamps were single in style and material, mostly made of medium and low grade materials. Energy saving tubes and bulbs were generally used as light sources, and inductive ceiling lamps were the main ones.