Low pressure mercury discharge lamp type in which most of the light is emitted by a layer of fluorescent material (phosphor coating) electrically charged by the U.V. radiation from the discharge source.
A light source that uses an ionization process to produce ultraviolet radiation. This becomes visible light when it hits the coated inner surface of the tube. Home Improvement Encyclopedia
A light source created by an ionization process and a coated glass tube
Low pressure gas discharge in a mixture of the rare gas argon and mercury vapour. In the positive column of this discharge, the mercury atom is excited by electron impact to emit ultraviolet radiation. A layer of luminescent material on the inner tube wall converts the UV-radiation to visible light.