... is have longer lifetime and higher brightness.(eg, 6W led light equal with 20W incandescent lamp) Power: 1*1W, 1*3W ... ,1*7W, 3*1W, 5*1W, 7*1W, 3*3WLed source: Edison chip,from TaiwanLampholder: GU10,MR16,E27,E26,E14.PAR ... , and waste recycling, no pollution contains no mercury elements, and cold light source, can safely touch.