Emergency lighting fixtures are composed of several parts, including light source, light source driver, rectifier, inverter, battery pack, and sign lamp housing. Normally, 36V drives the light source to illuminate normally through the light source driver, while supplementing the battery pack with electricity through a rectifier. Even if the lighting is turned off after work, the rectifier still operates in a charged state, so that the battery pack is always in a full combat readiness state. When encountering an emergency situation and the mains power suddenly stops, the inverter will automatically start the inverter circuit, converting the low voltage energy of the battery pack into high voltage energy, and driving the light source to continue lighting.

The general term for emergency lighting fixtures. The fire emergency lighting system mainly includes accident emergency lighting, emergency exit signs, and indicator lights. It is set up to guide trapped personnel to evacuate or carry out firefighting and rescue operations after the normal lighting power is cut off in the event of a fire. However, in daily inspections, it was found that there are many problems in the selection, installation, and use of fire emergency lighting fixtures in the unit. Therefore, the reasonable selection of power supply control and wiring methods for the emergency lighting system, as well as daily maintenance work, directly affects the effectiveness of the fire emergency lighting system. In daily life, it is necessary to conduct regular examinations and take precautions.