Ultraviolet rays are kinds of rays and rays are kinds of electromagnetic waves. All rays have congenital wave lengths and are grouped broadly into 3 categories, Ultraviolet rays, Visible rays, and Infrared rays. Furthermore, ultraviolet rays are classified into 3 kinds, UV-A, UV-B and UV-C. Ultraviolet ray is the wavelength range which have chemical reaction, and Philips supply wide range of high performance ultraviolet lamps from UV-A to UV-C which apply various kinds of usages.
※This item contains mercury.