Replacement ultraviolet lamp rated 140 W for Hanovia disinfection systems. Medium-pressure UV lamps lose output steadily through life rather than failing outright, so they are replaced on elapsed running hours against the system’s dose record, not when they stop lighting. This lamp is identified by its rating rather than by a system model, so confirm the wattage and the lamp length against the unit being serviced before ordering — rating alone does not guarantee the arc length and end-cap arrangement will match. Reference number 22141-0118.