Emergency Light Bulb

The emergency light bulb refers to the specific bulb built into the light fixture, typically a separate, low-power bulb unit. This bulb automatically activates when the external power source is interrupted or during emergencies, powered by the emergency circuit, to provide necessary illumination. The design of the emergency light bulb aims to provide sufficient brightness within a short period, ensuring basic lighting in the cabin.

Emergency Battery

The emergency battery refers to the battery system built into the fluorescent overhead light, responsible for storing electrical energy and supplying power to the emergency light bulb when the external power source is interrupted. This battery system includes a charging circuit, battery pack, and power supply control system. When the external power source is functioning normally, the emergency battery charges automatically; when the external power source is interrupted, the emergency battery takes over the power supply, transmitting stored energy to the emergency light bulb through the control circuit to make it illuminate.

Circuit diagram of JCY202-2