A great fit for demanding middle and large classrooms and meeting rooms where cost is critical The VPL-CH355 delivers an outstanding brightness of 4000 lumens and ultra high-quality images with WUXGA resolution. Sony 3LCD BrightEraâ„¢ panel technology provides higher picture quality substantially brighter images higher efficiency consistent colour stability and longer durability. It also delivers installation flexibility environment-friendly features and a low total cost of ownership in a stylish design that blends into any decor. The lens shift/zoom capability and the image correction features easily allow users to fit any image onto the screen even from an offset projection angle.The projector allows simple connectivity using an HDBaseTâ„¢* digital interface multi signal transmission system providing a single cable cost-effective long-distance and high-quality digital transmission solution. Additionally the projector is economically designed for optimum energy efficiency thanks to its energy saving features and has all the features and functionality that you would expect from Sony particularly in terms of installation projection usability and maintenance..