... Low raise temperature. 4) Low power consumption. 400w magnetic ballast for metal halide lamp and sodium lamp CodeWattLamp typeCurrent ... ,mercury lamp 35W,70W,125W,150W,250W,400W,600W,1000W,2000W.Electromagnetic ballasts for HID ... .6) Low magnetic leakage.7) Watts:35W,50W,70W,100W,125W,150W,250W,400W,600W,700W,1000W ... .10) TW:13011) Certificate: CE. 400w ballast magnetic ballast for metal halide lamp