I originally ordered 6 QB 304's, 2 HLG-240-c2100's, and 2 Slate 3 triples.
I ran them at 3 boards per Slate 3 and these lights were creating too much heat for my 4x4 tent at the full 250w. I'm in the middle of summer so my ambient temps are high already.
I ended up reworking them to 2 boards...