right this is how it goes i have a 3 ft tall by 2 ft square box these measurements may not be exact as im kinda out of my face and have measured it before but now cant be bothered.anyway... u have a 125 watt cfl red spectrum light and other cfls around the plant at the sides also one intake fan and one outtake at the top.tempratures hitting 28 to 29 degrees at bottom of box and at top its like a heatwave lol <may need to sort out another fan for outtake but top of box seems fine with temprature as it is now....im in 2 months of 12/12 and for some stupid reason i watched a topping video.after that got into my box and done the same to 1 plant not realizing that aplant has a time window thanx to mr shuffle on his kind info on this kind of topic.........i have all the tim eint he world for these plants and as i have left one to normally grow im sure that will be a nice outcome hopefully.....as for humidity i think it gets a bit too dry in there as the pots when watered get dry rather quick so if anyne has any tips of humidity solving it would be appreciated to hear from u about that ...that also goes for u mr shuffle...thanx