Thanks for explaining the Emerson effect. I'm going for a blend with 6500K, 5000K and 2700K CFLs and a couple of 4Watt LED floods with both red and blue total use is 250 watts over 6 plants in a 3x5' tent. The space is completely surrounded by Mylar and foil. Also, i'm using Gas Lantern Routine. At night its off for 4 hours, on for one, off for 4 and on for 15 all day. As it goes i'll diminish the day phase and eliminate the midnight wake-up. I'll lengthen the night by 30 min. every week till i'm at 12/12 or ready to harvest.