u can get a setup of those shop lights (including shop fixture $7 and twinpack bulbs $7) for $15 total after tax (walmart) and technically, it's a lumen issue.. you could pull mad bud, depending on how many of these setups you can get.. each 40watt fixture emits 6,800 lumens. a 400w HPS bulb gives off 55,000 if it has an enhanced spectrum/high output. Get 3 ($45) to 4 ($60) more flo setups, set em up vertically around your grow, get em real close, and you'll pull more bud than you can imagine, for the price you'd throw at an eighth