... Name CCFL fluorescent spiral bulb Model NO.NBD18WSCT(D)O Optional Voltage AC110V 50Hz-60HzPower18w Power Factor>0.90Luminance Efficacy65 ... 100 mg for using 50,000h10.Resistant to dampness, low temperature and frequent switching,quick to start11.Two years ... -tech enterprises engaged in energy saving,environmental protection,and low-carbon lighting,specialized in the development,manufacturing and sales ...