Definition: a black light is a lamp that emits electromagnetic radiation primarily in the soft near ultraviolet range. A black light emits very little visible light, hence its name.
Also Known As: UV lamp, ultraviolet lamp
Black Light Definition
By Anne Marie Helmenstine, Ph.D., About.com Guide
Ultraviolet light is invisible, but black lights or UV-lamps also emit some visible violet light.
Kallemax, wikipedia.orgChemistry Glossary and Dictionary
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