I've done it a few times, around docks with the big halogen lights (mounted on side of dock, just a foot or so above surface). Only caught a single fish on each occasion, on jigs & a Roadrunner. They all came from the shadows, just outside of the circle of light.

If you've got a blacklight, I see no reason why you couldn't cast jigs for Crappie .... they seem to be able to find baitfish in the dark, so I see no reason why they couldn't home in on a jig just as easily. Been wanting to try it, myself ... so if you try it, report back on what/where/how you did !!

... cp