Specification Fan voltage DC12VWattage 20 100WBeam angle of Len 20°Focal Length 30mmMaterial Aluminum glassSize of Fan 80 80 25mmSize of Len 44 19mmSize of heat sink 76 80 40mmFeature Fan with de vibration cover both heat sink and silent Heat pipes with HDT technology powerful performance to meet the elite enthusiasts Fin hinged design on both sides prevents air leak effectively and heat more evenly Design for larger heat dissipation area improve the overall thermal performance also the style is unique and nice There are two groups of black wires and red wires one black wire represents negative electrode and one red wire represents positive electrode the other blue wire have no use Application cooling avoid LED overheat fit High Power LED 20W 100W flood light etc Package Included 1 heat sink1 DC12V fan1 44MM LenSome screw for fixed lens and led chip