1)Column Heat Pipe Heat Sink,Short and thick copper heat pipe,2)High bay light heat sink,heat transfer,heat dissipate Specifications:1,Watt:40W, ... and high performance. 2,Copper column-shape heat pipe Aluminum LED heat sink,Bonded fins,Zipper fins and extruded finsFeature ... ,WESTERN UNION,ETC.Price TermsFOB Shanghai,EXW,CNF,CIFPackingShrink film,PE film.Box.Wooden box,etc. Or according to customers' ...