... 70, Tw 130 VS type,copper/aluminum Ballast, High Pressure Sodium Ballast, High Intensity Discharge Ballast, Magnetic Ballast, Inductive Ballast, Metal Halide BallastYHPS 70-1000W70W,100W ... ,150W,250W,400W,1000W- Main voltage: 220V~240V, main frequency: 50~60Hz.- Low ...