... 1)E27,E40,E26,E14,B22 2)CE/LVD/ROHS 3)Metal:Copper/Iron/Aluminium B22 porcelain lampholder,lamp holder,porcelain ... lamp socket,ceramic lampbase 1.B22,E10,E12,E14, E26,E27,E39, E40 lampholder,porcelain ... business independently.7. Meet CE/LVD/ROHS standard ModelPorcelain E14, B22,E27, E40 Series etc. Body MaterialPorcelain/ ceramic Metal MaterialScrew shellaluminium ...