... & SizeName HID Electronic Ballast for Metal Halide Lamp ModelGN020230VACEX(20W)GN035230VACEX(35W)Size97*40*30(mm)weight/pc150gPcs/Ctn40Net weight ... . We will use the 150W to modify for you.20W,35W,70W,150W,250W for Metal Halide lamps with CE ... -242VOut power35W&20WPower Factor>0.95Rated FrequencyFn=50/60HzEfficiency>85%(20W), >87%(35W)Output current crest factor<1.4overload protectionyesshort ...