... ,Rohs ISO9001 certified main feature of magnetic ballast:magnetic ballast250W,400W ballast,VS style EN60922 EN60923Magnetic ballast for HID 230V/50HzCE,Rohs ISO9001 certifiedEuropean ... lifetime.For mercury vapour lamps(HM),high-pressure sodium lamps(HS)and metal halide lamps(MH).Mains Voltage:220V,230V,240VMains ...