When selecting emergency lighting, the emergency lighting system should be reasonably selected based on the specific situation. Generally speaking, for new construction projects or projects with fire control rooms, unified wiring should be used as much as possible during the construction process, and centralized power supply and control type emergency lighting should be selected; For small venues, post renovation or secondary decoration renovation projects, independent control emergency lighting with its own power supply should be selected.

Compared with independent control emergency lighting fixtures with built-in power supply, centralized control emergency lighting fixtures with centralized power supply have advantages such as easy centralized management, user self inspection, fire supervision and inspection, extended lamp life, and improved emergency evacuation efficiency. The system has good reliability, long service life, convenient maintenance and management, and low system price. However, centralized power supply and centralized control emergency lighting fixtures do not have a backup power supply (battery) inside each emergency lighting fixture. If the power supply line fails, it will directly affect the normal operation of the emergency lighting system. Therefore, there are special fire protection requirements for the laying of its power supply line. And the independent control emergency lighting fixtures with their own power supply have no special requirements for the power supply line because each emergency lighting fixture is equipped with a backup power supply (battery), and the failure of the power supply line will not affect the function of the backup power supply. When an emergency light fails, it usually only affects the light itself and has little impact on the entire system.