The Panasonic ET-LAD510F is a replacement lamp module bundle for specific high-end, 3-Chip DLP projectors. This quad-pack contains four 465-watt UHM projector bulbs with their accompanying housings, making it a complete replacement solution. The module uses genuine original Ushio bulbs, which ensures the same benchmark performance in brightness, image quality, and lifespan as the lamps that came with the projector originally. The assembly is designed for user-replaceable installation, making the replacement process straightforward.