passive

Hey guys, I have my frame and everything measured. Plan is to use x12 CXB3590 COB in a 40"x40" frame. x6 3590 at 3500k and x6 at 5000k. 2 meanwell drivers 320watts at 1.4 amps in a series of 6. It's for my grow tent which is 4'x8'. I've been searching forever and realized it's much cheaper to...

I have a bunch of 5.88" heatsinks, 24" long, with (4) CXA-3070 running at 1400mA, fan cooled, on the old method of one driver per COB (driver board). I want to convert them to CXB-3590's at 1050mA with Mean Well HLG-120H-1050C drivers, passively cooled. The LED DIY Calculator says the heatsink...

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...

Dear Dudes and Dudets, Sorry to repost this as a separate thread but I got no reply when posted under another thread that I will not mention here as it suddenly turned into a testosterone fueled d**k contest... kinda sad. Anyhow here we go: I am on a DIY quest to put together several LED light...