Searching the right heatsink for my led building

Pedro Mello

Well-Known Member
Hi guys!
I'm planning to mount 6 cobs (Bridgelux® Gen 7 Vero® 29) on a 480w (HLG-480H-54A) driver (already bought).
My idea is to run them on 70W ea, approximately.
My doubt is if six passive heatsink with 80W thermal resistance ea (at 25º ambient) (no-fan CR-80EH) will handle that. However, my place is really hot and sometimes (rarely), I think the ambient temperature could reach like 40º.

The problem of have active heatsinks is that they have to work with identical behavior to minimize the thermal runaway, right?


Thanks already!
 
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