Aluminium led bulb heat sink 1.material:6063 T5,6061 T6 2.finish: anodized, ... lightinground LED heat sinkaluminum profile heat sinkled aluminum extrusion heat sink Lamp cap:FRDT-0015Base:e27,e14,mr16,g4,etc. ... aluminium common profiles., etc. Product nameHigh power LED light heat sink bulbMaterialhigh grade aluminum (6063,6061)TemperT3,T4,T5,T6,T7 ... of the new trend. 40w aluminium bulb light heat sink