if your on a budget, then you should go for cfl lights or HPS

8 26wat (1700 lumen each) which is about 14,000 lumen. typically the easiest rule of thumb for a plant to grow and produce flowers, the least amount you can use is 2000 lumen per square foot.

so a 4 pack of 26wat bulbs runs around 10-15.00 usd + pluss youll need some sort of sockets to hang them. (you can build a rig similar to mine for cheap. under 40.00 usd)

smaller HPS lights have been surfacing recently in the 150wat & 200 wat range that are fairly cheap 75.00- 200.00 usd, and put out about 20,000-30,000 lumen, but they get HOT, like a spot light, cfl's stay about 80% cooler.

the results I have gotten using cfl lighting, is perfect for my medical cannabis, and is strong enuph to produce medical grade/quality stuff, better than any shop ive been in, except in Holland.

here are my results using 6-10 / 26w cfl lights