Ultraviolet radiation is a portion of the [[electromagnetic spectrum]] with wavelengths shorter than visible light. The [[sun]] produces UV, which is commonly split into three bands: [[UVA]],[[UVB]], and [[UVC]]. | Ultraviolet radiation is a portion of the [[electromagnetic spectrum]] with wavelengths shorter than visible light. The [[sun]] produces UV, which is commonly split into three bands: [[UVA]],[[UVB]], and [[UVC]]. |