... Product Description.1.Item Name:LED heatsink.2.Material:Extrusion AI6063.3.Size:D99.4mm*H70mm.4.ISO9001:2000. ... parts,Downlight,electronic componet,LED lamp,home elctric appliance,machine equipment.Material:Aluminum 1050,5052,6063.....or customized materials. ... Features:easy heat discharge,easy assembling.Product size:D99.4mm*H70mm( 990 mA)OEM&ODM be welcome! heat sink extrusion pipe sunflower