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Is that a wireless dimmer for $10? Link please?

Haha, you're welcome man :) I have the exact same parts, but I was just gonna slap on a pot meter. What's this Pairui, some sort of PWM?

Thank you for the input VaperMan, I think I just may go for the HLG-240.

Yes, you're probably right, and when I convert from metric my grow space is 2.1x2.6 ft. Anyway, I'm coming from 220W of PL-L so this will be a nice upgrade no matter what :) I just wanted to hear if anyone had experience with running these at 1750, whether that is too hot for passive cooling...

I read up on COBs about a year ago, and I came up with a system like this based on Supra's posts: (4) CXB3590 3500K CD 36V (1) HLG-185H-C1400-B (4) LED reflector with ideal clips (4) 133mm circular pin-style heatsinks. I didn't order it last year due to cost. I can now source this for less than...