you have to switch your light schedule for 18/6 go on at 4pm and off at 10 am while in veg the transition should be no problem. also I found that the intake fans can make the ac pretty useless but if you shut it down you will need to add co2 I live in socal i think I heard it 111 today here. My rooms around 80 with the lights off, at night with the lights on it goes to 84.