Black Light lamps unlit tube looks white, emits UV and visible light... read more

Black Light lamps unlit tube looks white, emits UV and visible light. Used by restaurants, bars and entertainment industry for light effects. Black Light Blue lamps unlit look black (purple) similiar to black light but with a filter in the glass to filter out visible light. used for lighting posters, displays, etc. Used where fluorescent material in clothing and objects (white clothing, teeth and whites of eye) are desired for effect. Industrial uses include inspection and paper-money forgery checks. Emits only UV