Power distribution box: the main load is power or lighting and power used together, as well as the large capacity distribution box that provides power for lighting load (beyond 63A level, non terminal distribution, such as the upper level distribution of lighting. Power distribution box: the main load is power or lighting and power used together, as well as the large capacity distribution box that provides power for lighting load (beyond 63A level, non terminal distribution, such as the upper level distribution of lighting. Lighting distribution box: terminal power distribution, the main load is lighting appliances, ordinary sockets, small motor load, etc., the load is small, mostly single-phase power supply, but also three-phase power supply, but less application, the total current is generally less than 63A, single. A distribution box, also known as a power distribution box or electrical distribution box, is used to distribute electrical power safely to multiple circuits. It helps organize, protect, and control electrical connections in residential, commercial, and industrial electrical systems. A distribution box ensures that electrical supply is distributed in the building, also known as a distribution board, panel board, breaker panel, or electric panel. Without it, things like lights, machines, and appliances wouldn't work properly or safely. There are many types of distribution.