... be customized. 20W,35W,70W,150W,250W for Metal Halide lamps with CE, ROHS,ISO9001 in China. Some of ballasts also ... (highest)0.46No1,there are strobe2,the power consumption 3,low voltage or temperature not first start, several start fragile cathode shorten ... 5, with overvoltage protection, to prevent a short time voltage surges and temporary voltage is too high. 6, has a better fire ...