millertm
Well-Known Member
85° is what LED'S can run, HPS with CO2 in sealed room too. My hardstop is 80° with fans on ar 73° off at 71°. 1050 watt SHPS will cycle fans off few min, run about 20 min with room in mid 60°. LED'S or sealed CO2. , over 85° photosynthesis will break down and leafs overheat. But your plants look great, not sure why this came up.from what I have read 90 degrees is OK if there is enough light lIke 1000w hps. don't remember what the reasoning is but I still try to keep my 1000w in the mid 80's. I use a intake fan with ducting going to an ac vent to accomplish that.
Cheers
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