Fluorescent black light tubes use a phosphor material that emits UVA light instead of visible white light, Fluorescent black light has a dark blue filter coating on the inside of the tube, which filters out most visible light - Fluorescent black light fixtures and tubes give off UV light a uniform 360 degree cast that washes the surrounding area with light for a even wash and coverage, because of their UV wavelength, typically near 368 to 371 nanometers, the UV light they produce is very powerful and illuminates materials and paints very evenly. Perfect for nightclub, laser tag, theater, glow in the dark projects or special effects.
