new design our COB 40-45w heatsinks with D220X72 MM .
is easy to assembly the components together, very efficient for mass production or DIY users.
beam angle is 60 degree with cob leds .120dgree for smd leds possible.
the better heat dissipation than alumnium diecasting materials
can be rotatable with 20 ro30 angle while lighting to other diretions