I'm trying this new idea seeing if a single plant in a white cylinder will have a noticeable difference on the growth rate. I will be updating as soon as possible I'm using a 45w 4100K neon CFL with 3000 lumens and in a 1 square foot wide by 2 foot tall cardboard cylinder. I made 1 exhaust and 1 intake and place a fan in front of the intake and recycling the the hot air from the exhaust which is placed at the bottom. Trying in reflecting as mush light as possible from all the angles! And keeping this plant under 1 foot in height. I would like to know if anyone has any suggestions or has tried to use this method?