1,anodized aluminum heat sink for bulb light 2,aluminium6063-T5 3,anodized,powder coating,polishing 4, ... OEM welcomed 5,ISO9001 anodized aluminum heat sink for bulb light 1.products detail material6063-T5Color:white/black/yellow/blue ... ,ect. 9.reference picture extrusion anodized aluminum heat sink for bulb light shell