*three sextions of blowing funtion to control on/off The action of blowing can switch the power on or off and the light efficiency will 100%¡÷50%¡÷0% Providing emergency lighting for forty minutes to ease your panic during power failure. *electrical storage power 40 minutes *none uv MaterialPorcelain glaze Base type Power consumption 1w Voltage input Ac 90v~260v Size 76(£p)*164mm(l) Operate temp. -20¢xc~40¢xc Humidity0~85% Life 40000 hrs Weight 185 g Color temp. 3000 k Output color temp. 75 lm Color (cri) >80