Hi there!
Have been lurking forums last couple of months in order to do a CXA3070 COB build, and so far Im all for a passive cooling unit, and these are the 2 heatsinks I got aviable here in M3x1co:
Mod. C125 L: 14 cm H 5.8 cm Deep 12.5 cm
Mod. C150 L: 14cm H 5.8 cm Deep 15 cm
Or the Cree...