... PrincipleHigh Luminance, Energy-saving, Longevity, Safety, Easy installationHID is the abbreviation of High intensity Discharge, usually known as xenon ... which in turn ignites the metal halide. the light is created by an electrical discharge between two electrodes in an air ... voltage, the Xenon gas ionizes and a super-bright beam is produced. Features High Luminance, Energy-saving, Longevity, Safety, ...