1.good heat dissipation 2.with long working life 50,000 hours 3.with two years' warranty Specifications Power:21WLed Num:LED 21*1WLed type:EPISTAR,EDISON,CREEColors:Warm white,cool whiteInput voltage: AC 85V~265VLumens:2415lmAngle:30 ° 45 ° 60 °Type:PAR56Base:E27/GU10Net weight:510g/pcCertification:CE,Rohs,UL