Emergency lighting for fire evacuation should be located on the wall or ceiling (applicable to fire double head emergency lighting, fire emergency ceiling light, fire emergency downlight / spotlight, etc.). Fire emergency lighting is the most common lighting tool in fire emergency. It has long emergency time and high brightness with automatic power failure emergency function. The fire emergency light has the characteristics of low power consumption, high brightness and long service life. The power switch and the indicator light are designed on the side, which is suitable for emergency lighting in factories, hotels, schools, units and other public places.