The UV-B portion of the ultraviolet spectrum includes wavelengths from 280nm to 315nm. The UV-B bulbs in this category provide therapeutic benefits including treatment of skin disorders. Additional non-UV phototherapy light bulbs are located in the Bilirubin Blue phototherapy category. If you don't find what you are looking for by browsing the offerings below, call 800.867.2852 or click the 'Live Help' button above to speak with a lighting specialist. In most cases we can find the UV-B bulb for you at a competitive price.