UVB Light: Vitamin D and Light Therapy Treatment
UVB light simply means ultraviolet (UV) light that has a wavelength between 280 – 315 nanometer, nm. Ultraviolet light falls on the electromagnetic spectrum between visible light and x-rays and is generally divided into three sub-bands characterized by wavelengths: UVA (315 to 400 nm) near UV UVB (280 to 315 …