i grew my first 2 plants under a 4-foot shoplight w/ 2 x 40W bulbs. I kept it contained in a box 1x4x4. It will work, just not AS well as the big boy lights. Keep your lights within 2-3" from the tops of your plants at all times. Dont try to grow big plants because the fluorescent light wont do any good for the lower branches. I flowered mine at 4 weeks, around 12" tall. It was regular bag seed and i couldnt believe how well 1 plant turned out. The other had buds that were light and stringy but because it was fresh, it still got you mega stoned. Keep your expectations in check and have LOTS of patience. It is SOOOO worth it.