Conversion kit for medium-pressure (MP) ultraviolet lamps in Berson disinfection systems, 50 mm size. It supplies the parts needed to adapt a lamp position to the specified size rather than replacing the lamp assembly outright. The 50 mm figure is the size designation carried by this kit and distinguishes it from the 100 mm variant; match it against the installation before ordering. Reference number 1065-0706, 50mm.