The Optoma EH500 will make your presentations shine crystal clear in full high definition. Its powerful 4700 lumens bright output combined with an outstanding 10, 000:1 contrast ratio delivers amazingly bright presentations with vibrant colors & sharp, clear text & graphics. Its ideal to be used in large screen applications where fine image detail is required. The Optoma EH500 features an impressive array of connectivity options which include a display port, two HDMI, two VGA, VGAOut, S-Video, composite video, 12V trigger, RS-232C & RJ45. Crestron Room View for over the network control & management of up to 250+ projectors. Perfect for large installations in business & educational environments.