... Magnetic Ballast , 1000w dimmable ballast , hps ballast 1000w , magnetic ballast Electromagnetic ballasts for metal halide lamp,sodium lamp,mercury lamp 35W,70W,125W,150W,250W,400W ... / 60Hz 6) Power: Available at 35W,70W,125W,150W,250W,400W,600W,1000W,2000W7) Suitable for various kinds of products8) Certificate ...