Metal Case Gear Box For HS/MH/HI lamp 1.ballast+ignitor+capacitor inside 2.Shape(H*W): 81*124mm ... /92*140mm 3.watt:35w-400w Metal Case Gear Box ... *124mm/92mm*140mmtw:130Specifications:With Ballast ,ignitor ,capacitor inside 1.Wattage:35W,50W,70W,100W,150W,250W,400W2.Voltage:220V ... .6.Qualified sample is available. 250W metal halide ballast box