1.Magnetic ballast for HID Lamps(HPS/MH/HM) 2.Watt:70W-400W 3.100% Copper,good ... 4.CE&TUV 5.Size(H*W):53mm*66mm Magnetic ballast YJ-V/A-HS/MH (* stand for watt) For HS ... (H*W):53mm*66mmtw:130Description:1.Wattage:HPS/MH35W, HPS50W, HPS/MH70W, HM80W, HPS100W, HM125W, HPS/MH150W, MH/HM250W, MH/HM400W2.Voltage:220V ... Series 70W/150W/250W/400W: MH metal halide lamp 250w ballast