Biggest light I can fit in a 4x2

[supersecretjim]

@unomas

Nice man! How far do you keep it from the canopy? I have the same light and trying to figure it out as well.

James' Money-Pit Or: How I Learned to Stop Worrying and Love the Octopot!

Straight from Grow Light Science… PPFD Levels 2’ x 4’ Reflective Wall Area Mounting Height = 20" Average PPFD = 1,038 umol/m2/s [20240324_175552] I’m set at 17" distance. Light at level 10 for a while just to set in. Light on all day at level 7. [20240324_180120] [20240324_180247] 17" from bottom of lamp to bottom of Gorilla CFM Kit front and rear bars. [20240324_200542] All my measurements taken with Uni-T and PPFD app. 2x4 Tent completely zipped and closed aside from center zipp…

Check out this thread around post #348. Its shows lots of info. From that post on, I have lots of good info on the lights, PPFD, and distance. Keep scrolling and you’ll see good pics and info even towards the end.

Gonna do a full-on test on the GLS ProGrow 320 after the harvest finishes with the HLG350R