Shine Some Light on the Situation

I am attempting to construct my own lightbox. I tried to use a couple of mini-flashlights at first for lighting but of course that really didn't work at all, especially since my box is so short. The "box" is constructed of two picture frames. The top is the two sheets of glass from the frames with tissue paper sandwiched in between. I'm going to krazy glue the frames together I think. But still need to get a fluorescent bulb for the box or it won't work. Hopefully there's a small enough bulb for my 11 x 14 "box".