Global wood lamps market is segmented on the basis of product type, product, application, and geography. A wood’s lamp is a diagnostic device that emits ultraviolet (UV) light in the 365 nanomater range and normally used by dermatologists to detect bacterial or fungal skin infections. Also, it can detect skin pigment like vitiligo and the other skin irregularities. It also determines if you have any corneal scratch on the surface of your eye. This test is termed as the black light test or ultraviolet light test.