Electromagnetic ballast for metal halide lamp, sodium lamp, mercury lamp 35W, 70W, 125W, 150W, ... For HS:(high-pressure sodium) discharge lamp MH: (high-pressure metal halide) discharge lamp HM:(high-pressure mercury vapour) discharge lamp ... , 600W, 700W, 1000W8) Color: ivory9) Material: copper or aluminum wire, silicon steel sheet10) TW:13011) Certificate: TUV, CE, RoHS