Incandescent bulbs: These bulbs are made from a UV-filter coating, such as Wood's glass, on a standard incandescent bulb.When in operation, they emit a dim, violet light. Black-light fluorescent tubes: These types of lights are made from the same materials as regular fluorescent bulbs with the exception that a phosphor that emits UVA light is used.There are three main types of black lights: What types of black-light bulbs are there? Artwork lighting: Black lights can be installed over artwork to make certain elements glow.Black lights can be used to illuminate the markings. Marking valuables: Special marks can be applied to valuables or stock items that are invisible to the naked eye.It allows for the use of invisible ink that doesn’t visibly stain the person’s hand but will show under a specialty light. Hand stamping: Theme parks, night clubs, and other businesses may use black lights to see if a person's hand has been stamped.Carpet cleaning services often use specialty light bulbs to find and treat pet stains in problem areas. Stain and waste detection: Waste fluids from humans and animals fluoresce under black lights.Fluorescence could indicate certain skin diseases. Medical applications: Back lights can be used to observe fluorescence in the patient's skin.There are a myriad uses for black lights, including: Bulbs used in black lights come in a variety of shapes and sizes, depending on what they are designed to be used for. Homeowners or renters are most likely to use black light bulbs during parties or for making special artwork glow, and they have a wide variety of commercial and specialty uses as well. Also referred to as a UV-A light, Wood's lamp, or UV light, black lights are specialty light bulb systems that certain materials fluoresce.
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