1. magnetic ballast for Metal halide,sodium lamps 2.70w-400w,220- ... factor:0.57 4.CE&TUV 5.ISO9001 certified 1. magnetic ballast for Metal halide,sodium lamps 2.70w-400w,220 ... 4.CE&TUV 5.Tw:1306.from ISO9001 certified factory Magnetic ballast,used for high-pressure sodium lamps(SVB) and metal ... Voltage:220V,230V,240VMains Frequency:50,60Hz.CodeOut put Watts(W)LampCurrent(A)Main(V.Hz)t(K)P/FNetweight(KG ...