uv led for night time camcorder

id like to try to make a uv led light for my camcorder. Possible uses would be tape to kids sleeping, use as a wildlife camera or just tape where lighting isnt possible. Im thinking i could mod a pen light first with a few AA bateries and see how that works. I could probly cram in 3 500mn uv leds with a single or double battery configuration and see how that works. Hmmm ill have to come back to this idea later since its getting colder out and wont be doing much outside anyways. Hey i just thought of 2 more things i could use this for, Night Time trick or treating and sledding.