I run lower 80’s during lights on and within 5 degrees lights off and buds are not airy at all but too hot and you can run into issues like fox tailing and burning. Lower to mid 80’s max I would say.What temps do you guys do for veg and flower in your room using led... i have an hlg 650 rspec in a 4x4... ive been reading mid 80s... im worried about getting airy buds.