Optoma EH500 High Brightness Projector for Business with 4,700 Lumens, HDMI and Crestron RoomView for Network ControlThe Optoma EH500 1080p networkable projector is a perfect solution for large installations in business and educational environments. Crestron Room View network control allows a custom configurable interface to monitor, manage and control up to 250 projectors remotely from any computer. A powerful 4, 700 lumen bright output combined with a 10, 000: 1 contrast ratio deliver amazingly bright presentations with vibrant colors and sharp, clear text and