"mercury-vapor lamp." YourDictionary, n.d. Web. 19 January 2019. <https://www.yourdictionary.com/mercury-vapor-lamp>.
mercury-vapor lamp. (n.d.). Retrieved January 19th, 2019, from https://www.yourdictionary.com/mercury-vapor-lamp
mercury vapor lamp
A lamp in which ultraviolet and yellowish-green to blue visible light is produced by an electric discharge through mercury vapor. The color spectrum may be corrected by the addition of a phosphor coating, and ultraviolet blocking is required to prevent injury.