50W Heat Pipe Heat Sink Column Heat Pipe Heat Sink,Short and thick copper heat pipe,Honeycomb Heat Pipe Heat Sink Specifications:1,Watt:40W,60W,80W,100W,150W,180W,200W,500W,etc availableGood for miner light and highbay light.Light weight and high performance.2,Copper column-shape heat pipe Aluminum LED heat sink,Bonded fins,Zipper fins and extruded finsFeature:heat pipe+copper base+aluminum fins3 ...