I am using 8 48" cool white bulbs
 

Ron, I love your site. I built the 11 Plant Garden and transplanted a NorthernLight/Skunk breed into the the system about one month ago. Everything looks good so far. I am using 8 48" cool white bulbs, producing approx. 24,000 lumens, and white posterboard for reflection. The lighting arrangement looks like the top half of a tanning bed. I know I would be better off with a 250w HPS, but I cannot afford one at this point. Am I wasting my time completely or just some. Thanks, Brandon

At least you picked one of the best hybrid plants bread for indoor low lights condition so you may have some luck. At least in the veg. stage but I don't know when it comes to budding them. Never tried to bud under fluorescence lights.
Ron