lampholder,porcelain lamp socket,ceramic lampbase 1)E27,E40,E26,E14,B22 2)CE/ ... LVD/ROHS 3)Metal:Copper/Iron/Aluminium E39 porcelain lampholder,lamp ... .B22,E10,E12,E14, E26,E27,E39, E40 lampholder,porcelain knife switch,fuse unit series etc.2.Metal ... CE/LVD/ROHS standard ModelPorcelain E14, B22,E27, E40 Series etc. Body MaterialPorcelain/ ceramic Metal MaterialScrew shellaluminium ...