... halide lamp,sodium lamp,mercury lamp 35W,70W,125W,150W,250W,400W,600W,1000W,2000W.Electromagnetic ballasts for HID lamps.For HS:(high-pressure sodium) discharge lamp; MH ... ,1000W.8) Color: ivory.9) Material: copper or aluminum wire,silicon steel sheet.10) TW:13011) Certificate: CE. 400w ballast magnetic ballast for metal halide lamp