...I'm working on two different gardens right at the moment. My main garden is still lit by a single 600w Sunmaster HPS being driven by a Lumatek digital ballast. It fills an approximately 9 to 10 square foot space.

My new 'livingroom' garden is on a lower shelf between two tall bookshelves, and is about two and a half square feet, being lit by 12 CFLs (well, 10 at the moment, but soon to be twelve, as soon as I can find those other big boys in me mess): 4x45w 4100k, 4x26w 6500k, and 4x26w 2700k, for a total of 24,800 lumens (only 18,800 @ the moment, but soon to be fixed).

I want to see if I can achieve similar bud density with the CFLs, as the lumens per square foot ratio is roughly the same in both places. I can get the CFLs closer to the plants tho, and so this is going to get interesting

It was getting too crowded in the main garden anyways