SUNLITE 4w T5 F4T5/BLB 6in. Blacklight Blue Fluorescent Tube Light

4 watts T5 F4T5/BLB Blacklight Blue Fluorescent Tube Light

Fluorescent 4 watt black light blue T5 straight tube features a mini bi-pin base, and can last an average of, 6,000 hours.
A Blacklight Blue lamp is essentially the same as a standard Blacklight but the glass is designed to filter out visible light.
Used by psychedelic shops for lighting fluorescent posters, displays, etc.
In bars and restaurants, the Blacklight Blue is used where only fluorescent material in clothing and objects, most white clothing, teeth, and whites of the eye, are desired for effect.
Often used by the theatre to achieve a similar effect.
Additional industrial uses would be inspection.