... .100% Copper,good silicon 4.CE&TUV 5.Size(H*W):52mm*60mm Magnetic ballast YJ-P-HS/MH/HM* (*stand ... lamp HM (high-pressure mercury vapour)discharge lampShape(L*H*W):118mm*52mm*60mmtw:130Specifications:1.Wattage:HS/MH35W,HS/MH50W ... available.Quality & Approved :CE ,TUV 70w MH/HPS lamp philips type HID magnetic ballast