... Magnetic Ballast , ballast and ignitor 250w, magnetic ballast 220v/50hz, electronic ballast 250w Electromagnetic ballasts for metal halide lamp,sodium lamp,mercury lamp 35W,70W ... ) Working voltage: 220 - 240V, 50 / 60Hz 6) Power: Available at 35W,70W,125W,150W,250W,400W,600W,1000W,2000W7) Suitable for ...