Power source and ballast module and projection machine

The invention provides a power source and a ballast module and a projection machine. The power source and the ballast module comprise a bearing base, a power panel, the ballast and an electric connector. The power panel is arranged in the bearing base. The ballast is arranged in the bearing base and electrically connected with the power panel. The electric connector is arranged in the bearing base and exposed out, and the power panel and the ballast are electrically connected with the electric connector respectively. The power source and the ballast module and the projection machine aim to improve the disassembly and assembly efficiency of the power panel and /or the ballast.