Wait, do you have optics or not?
With Optics 120`s . 90`s didn't work for me so far .
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Wait, do you have optics or not?
With Optics 120`s . 90`s didn't work for me so far .
And you running the LumenTek Pro180?
Yes I have the 180 & 240 and changed both to 120 optic`s
IMO I think your light is too strong for a 40b, with only 16" of depth 180w is ALOT! I only ran 36 cree 3w LED's above my 55 and now they're on my 120 and doing fine.
The comment earlier about the kessils is correct though, unfortunately most people are unable to get ahold of a kessil due to the price, and it seems most other manufacturers aren't producing anything under one single lens like that.

