If I were you... I would get three 400 watt digital HPS lights. They run cooler and put out many more lumens while saving power. I would run 4" or 6" aircooled hoods and exhaust it with a 4" inline fan or a 6" inline fan if you ever feel like youll upgrade. Get a speed controller so you can turn the fan down. Keep the first hood open on the end so your pulling the air from your grow room and exhausting it out. 400 watts shouldn't light a 4 foot long area. But a 2x2.5 area...you could take a pound out of each light with practice.