... ,6063 aluminum alloy,cooling,saving energy 3.pass Rohs Item:LED 531 streetlight heat sinkDescription:1)Material : 6063 6061 6060 and ... grain color, and Fluorocarbon spraying. 4)Heat sink for LED street light,downlight5)Aluminum profile heat sink,aluminum heat sink ... for LED light6)good performance in heat dispersion,perfect design7)help ...