Light Emitting Diodes (LED’s) are electronic semiconducting devices that emit light when charged with electrical voltage. This light is not like a laser, it is diffuse in nature and cannot travel long distances. LED’s basically emit a single colored light in a forward direction. The color depends on the conducting medium and the bands or wavelengths can fall in the ultraviolet, visible or infrared spectrum of energy. LED’s are commonly used in medical and aesthetic practices for reducing inflammation, skin rejuvenation, enhancement of wound healing, acne therapy, and joint pain.
(Updated June 3, 2010)
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