... lamps with CE, ROHS,ISO9001 in China. Some of ballasts also get ROSH and PSE.Our Metal Halide Electronic Ballast can ... world. Function & ParameterRated VoltageUn=AC185-242VOut power35W&70WPower Factor>0.95Rated FrequencyFn=50/60HzEfficiency>85%(35W), >87%(70W) ... lightning,Anti electromagnetic interference function.1, high quality, high reliability, long life. 2, its own power consumption, saving 30%. 3 ...