I have just started to do some LST. I have my girls in a 4x8 Luma tent with a fan only on when the lights are on. The LED lights create little heat so the heat control is easy but humidity control is a must the girls are still in veg so 60% is ok for now and the light never get above 27c. I set the controller at 25c with a 5 degree change for cooling and the humidity at 60% with a 5% change.