That doesn't sound like enough light at all. Incandescent bulbs are terribly inefficient, producing more heat than light (can you say "Easy Bake Oven?"). If you're in the U.S.A. go to home depot or lowes or probably even walamart and buy mini-spiral Compact Fluorescent Lamps (CFL) These have a built-in ballast and screw into an ordinary light socket. Get the most watts you can find, preferably 27+ watts each. These bulbs come in a variety of color temperatures; I have had great success with a combo of Daylight (5500K) and Soft White (2700K) bulbs.
I don't know anything about flouro tubes.
