Small volume high light effect,quick startup,no noise,no frequency,flash,long lifetime,low power consumption,safe reliable eyesight protect; working voltage range,AC 150V~250V,50HZ characteristic,working ambient temperature-20~60degree more ower saving30-40% than common lamp, beautiful sculpt,simple install,power saving; widely use in crossrad,supermarket,school railroad,office,household;T4,T5 support series(white,green blue red yellow)have common typeand spray mold type.