led down lampProductFeatures: 1.savemorethan60%energycomparedwiththefluorescentlampofsamebrightness. 2.Lifespanoflightsourcereachesover50,000hours,whichisupto25timesthanthatoftraditionallamps. 3.Thelampscanradiateheatthemselvesandneedn’ttoinstallanyextraradiators. ReferenceParameters: Spec.:VKC-D08 Size:6inch Material:Aluminum LEDlightsource:integratedpackaginglightsource,single5-10W Ratedpower:5-10W Powerfator:0.9-0.95 Luminousflux:75-80lm/W Colortemperature:white(6000K±500K),warmwhite(3300K±500K) Lifespan:3years Inputvoltage:85-265VAC heat emission by house,don't need heat sink Certificates: CE&ROHScertificates.