Hi Yeti, just a beginner here so I don't know too much, however I have last year grown out personal crops, 1-2 plants at a time in a cabinet that is 30 inches wide, 16 inches deep and 5 feet high. I had what I consider to be great results in that cabinet, I have two 5 inch personal desk fans, and the lighting I have is one big CFL, 200 watt, 6500k full spectrum bulb with a reflector from " hydrofarm ". Heat is really kept to a minimum and like I say for a small personal grow, I have found this to work great.