Matching heatsink to led cob?

Belfasta

New Member
Hi folks,
I have just made a framework to mount an Aavid r186-70 heatsink with an arctic f12 fan on top. see photos.
Aavid say this heatsink is capable of dissapating 40w of heat passively.
My question is what would its capacity be with fan blowing at 74cfm (126m3/hr) in a 80x80x160m grow tent with extractor fan on as well? Ambient temp 20 °C.

I have a 3000k gen7 vero 29 array cob and want to know how hot i can run it? I was hoping to run it at between 2.1 to 2.7amps.

Please advise

La belfasta
 
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