14.75 in. 50 Watt T10 U Bent Ful Fluorescent Tube Light Bulb Black Light (12 Pack) Item Weight:5 lathering and other shower tasks lathering and other shower tasks while maintaining your temperature settings ADA compliant WaterSense® labeled showers use at least 20% less water than the industry standard—saving you money without compromising performance ) 22 Returnable 180 Day Product Weight (lb direct replacement bulb for a variety of models FUL black light (BLB) the Sunlite 50 Watt blacklight bulb (BLB) emits ultraviolet (UV A) light at 368nm wavelength perfect for lighting up reactive surfaces while not illuminating the surrounding areas GX10q 4 pin base