re building a uv flashlight you can get a little uv by putting a heavy uv filter deep purple in front of an ordinary flashlight bulb the brightest you can get my father used a setup like this in law enforcement work circa good uv blacklight bulbs work like fluorescent bulbs i d proceed by getting a cheap battery powered fluorescent light then going to an electrical supply house and finding a uv bulb that would fit it michael a covington associate research scientist artificial intelligence programs mcovingt ai uga edu the university of georgia phone athens georgia u s a amateur radio n tmi
