A black light, also referred to as a UV light, ultraviolet light, or Wood's lamp, is a lamp that emits ultraviolet radiation (UV) and little visible light. A "black light" usually refers to a lamp that has a dark blue optical filtering material in the glass envelope of the bulb which blocks most of the visible light, so the lamp emits mostly ultraviolet. Black light sources may be made from fluorescent lamps, mercury vapor lamps, light-emitting diodes (LED), or incandescent lamps. Black lights are essential in observing fluorescence, the colored glow that many substances emit when exposed to UV. Black lights are employed for decorative and artistic lighting effects, for diagnostic and therapeutic uses in medicine, for the detection of substances tagged with fluorescent dyes, rock-hunting, for the curing of plastic resins and for attracting insects. Black light lamps are also used for the detection of counterfeit money, scorpions, pet stains and CSI type medical forensics. Black Light parties are a popular form of home rave that party goers throw today. We carry a large variety of black lights from UV flash lights, tube lights, screw-in bulbs, battery powerd, and UV strobes.