The Panasonic PT-RZ670LBU Series projectors are the next generation in projection technology. These lamp free WUXGA and WXGA 1-Chip DLP projectors utilize a laser light source and filter-less design for up to 20,000 hours or more of 24/7/365 continuous and maintenance-free operation. With no lamp to replace, these projectors maintain a much more stable light output over a much longer period of time. Projectors with lamps to replace will go through more frequent cycles of brightness and dimming while the laser technology will remain steady and brilliant during the same period. The laser engine used in the Panasonic PTRZ670LBU projector is designed such that if anything were to go wrong with a single laser module, the Panasonic projector would not only remain running but continue operation at up to 93% brightness The Panasonic PT-RZ670LBU will revolutionize the way projectors are used.