when I did a 2 light comparison in one large tent, I used insulation foam board up to the bottom of each light which allows air circulation above
hth
Yeah, i did the doubled folded PandaWrap 10" suspended feom the ceiling & 4' off the floor (bottom trellis is 3'. Divided well & let air travel.
But hey, whatever man. You'll still see the difference in growth. & he's doing a fine job!
You know MikenIke, you could lower the Bar-8 to even out the efficiencies making up for the removed acrylic on the Sabers.
Its got x3 row of diodes rather then one so the spectral blending works good close as well. The gasget on the glass itself creates a small flat that prevents some light from Shooting sideways. That's why it doesn't blind me like QB's do. The proto blinds me, has an inner 45• angled refector sides that focuses the light aprox 90-100• it's only one row & a yr earlier tech & it throws serious ppfd #'s. Trade off in designs. Lose one thing to gain another.
Also, i wonder how much different are Pre-Production models? Was under the impression it was only the 65k's that were lm561's. Colors are less electricity efficient besides the 660's now. But the trade off in spectrum is worth it as you'll see.
Personally, i need the glass. Come harvest id be jizzing all over the diodes if not. Lol!
Good job!
Nice plants!