Lights for lightbox

What is the best choice for lights in a lightbox for flats? Either AC or DC sugggestions are welcome. The box is for my C14 so it is large. I have the box built but I'm looking for a better light solution.

Thanks Carl Burton

I planned mine out almost entirely at the craft shop--it was in january, so they had lots of xmas lights lying around dirt cheap--I found a small set that was designed to wrap around a wreath; the light strand was the perfect length to wrap around the inside of my lightbox, and was powered by 2 'c' batteries. My suggestion is roam around those craft shop/hardware stor type places and the answers seem to appear where you least expect them.