... span 1.The LED bulb commonly adopt standard screw(E27) socket,AC 220V supplied,convenient to replace common incandescence lamp ... contain's,have no polute to the enviroment.8.LED bulb can use low safe voltage of 5V,12V ... engineering plastic,endure impact,shock and resist fragile.10.LED lamp have the advantage of saving energy,environmental protction ... power options: 1.6W,2.6W,4.2W. led indoor lighting