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  1. M

    COB & Heatsink Question

    Hello, I´ve just finished my first grow with a dyi cxb 3590 light in a 4x4 tent and I really enjoyed the result, so I was planing to upgrade my 4x8 tent with cobs as well. Been reading a lot about which cobs to use since cree is apparently not the leading company anymore and not the best...