About the heat: Unfortunately we are not yet geting the heat we want
. Instead of 2,5 degrees the temperature rises about 4 degrees in an 80 cm tent. Still no heat problem at all. On contrary, we are thinking about using IR leds to heat things up a bit.
Because of the distance of the light to the plants and the relative low temperature at top height we have no humidity "problems". Would it be better to add a fogger? I think so. It's dry in sannies room. But then again 95% of home growers grow this way, with a light, some (good) substrate, nutrients and extraction through a filter. We want to see results in a "real world" environment, not in a lab. Other plants do fine here, so why shouldn't these.
Everything we do here is easily repeatable and with a bit of effort you can create an even better climate if you wish.
The leds are installed to "heal" the red gap in the spectrum. If you don't install a lot of leds you need distance for uniformity. The amount of red light was adjusted to measurements at top height. Fortunately with the Plasma and the reflector you can keep a little distance.