... led light heat sink 2.used for AMPLIFIER,CUP,CERAMIC,CIRCULAR,LED LIGHT 3.tolerance:0.05 mm +/-. 4.finish:anodized 1.aluminum heat sink for ... using industry over and amplifier big CUP,CERAMIC,CIRCULAR,LED LIGHT2.materials ... :.6000 aluminum alloy ,sepcial 6063, 30003.fin tolerance: 0.05 mm +/-.at least.4.finish:anodized, mill finish.5 ... L/C ,OR 70% TT. led light heat sink