... 1.Professional optics designs 2.no glare,low light decline 3.Energy saving ,green 4.long life ... span 2011 New design E27 LED buld light(5*1w)parameter:VoltageAC110-240VSingle led power1WLED QTY5PCS ... life ,have no filaments in led light source , Optimum brightness immediately after light on .9.Can replace 20W ... of the traditional light bulbs , the advantages are more energy saving ...