Lampedia Projector Lamp for DELL 7609WU/311-9421/725-10127/468-8992 Part Number: 311-9421 / 725-10127 / 468-8992 OEM Bulb with Generic Housing 180 Days Warranty Technology: DLP, Lamp Wattage: 300 Life Time (STD): 2000, Life Time (ECO): 2500