I know. That's the kick to the teeth. When you see growers with 600w in the same space get the same size buds. But I added a new air cooled reflector, AC unit, and duct fan/work to bring in fresh air from outside. I've also been looking into Co2 in the near future. Kick the AC down a notch let the plants deal with some heat and suck up a shitload of Co2 in the process...