New USB Light COB High Lumen Lithium Battery Waterproof Headlamp

The emergency lighting system used in China is mainly of the independent control type with its own power supply. The normal power supply is connected to the ordinary lighting power supply circuit, and it usually corresponds to the charging of the emergency light battery. When the normal power supply is cut off, the backup power supply (battery) automatically powers up. This form of emergency light has a large number of electronic components such as voltage transformation, voltage stabilization, charging, inverter, and battery inside each lamp. The battery of the emergency light needs to be charged and discharged during use, maintenance, and failure. Another type is the centralized power supply and centralized control type, where there is no independent power supply inside the emergency lighting fixtures. When the normal lighting power supply fails, it is powered by the centralized power supply system. In this form of emergency lighting system, all complex electronic circuits inside the lamps are eliminated, and emergency lighting lamps are no different from ordinary lamps. The centralized power supply system is set up in a dedicated room.