We bought our PT-AE2000U in 2007. It is ceiling mounted (Chief) and has accumulated 600 hours now after 24 months. A speck of dust got in and was visible as a blob on screen within the first month. This problem was resolved with an at-home clean-up and an additional filter covering...
or more of its white brightness in Vivid TV and Cinema modes—close enough not to matter—to 70% to 76% as bright in its other modes, which is enough of a difference to make color images a bit less bright than you would expect for an LCD projector with matching measurements for both....