Thanks for any help I can get ....... Right now I have a 5 x5 x6.7 ...I have one 600 watt hps cool tube on mover. I also am looking into 2 new. VHO air cold 8 bulb units makeing 57600 lumens each. So with the 2 new lights I would be at 115200....if I add the 600 watt hps I have a total of 205,200 lumens. Now I have 10 sqft so div 10 into 205,200 =20,520 Per sqft ... is this going to be to much light? The new light 6 inch cold air..... any help would be great...