... with the transistor and integrated circuit together,this LED lamp is widely used in-the communication ... pure lighting color,beautiful decoration.convenient maintenance,the Led lamps is used in illumination fiel-d,e ... lamp,project lamp,ground coner lamp.ball bulb,underground lamp,crystal spot lamp,lawn lamp,race ... .and develo-ped0.5,1w,3w power LEd,which are extensively applied in illumination,lighting and ...