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Yes, I always had issues with temps in my tent when running HPS. It can be fixed with ventilation and AC but that really pushes up the cost. I once left on a weekend trip with the HPS going and had a timer fail on my ventilation fan... When I get back the tent was so hot I basically cooked the plants. That is one of the main reasons I switched to LED. Right now I am running two tents one 4 x 4 and one 5 x 5 and use a window AC unit and vent back into the room. It is very easy to maintain the temps in the low eighties. Now that it is cooling off at night the AC just switches to fan mode. I also can vent out of the room if need be.
Gotcha, just out of sheer intellectual curiosity what were your temps in the HPS tent on the side by side grow in the pics?