new magnesium alloy diecasting  heat sink for  downlight  housing

new design our COB 50w heatsinks with D280X72 MM .

 is easy to assembly the components together, very efficient for mass production or DIY users.

 the better heat dissipation than alumnium diecasting materials
suitable for smd led or cob leds
bbeam angle is 60 degree and 120 dgree smds.