ballast for Street light street light ballast is reliable, high illuminant quality,energy-saving ballast for Street light UL and CUL approval cwa ballast for hight pressure sodium and metal halide ... ,1000W;MH 70W,150W,175W,250W,320W,350W,400W750W,1000W,1500W;Input voltage and frequency available in:120V/60Hz;208V/60hZ ...