China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

A look at the high pressure sodium ballasts appearance, if the ballast burned out shell is black. 2, the electric pen detector, the end of the line and the outlet end housing into the line end without electricity ballast bad into the line-side fuse short circuit into the line side electric outlet side no electricity illustrate the ballast internal disconnect live shell is illustrated ballast leakage 3, if the inlet and outlet have electricity, the housing is not energized, while the light is not bright, it is possible by replacing the trigger to determine. If you change the trigger without lighting, the hid ballast is broken