Optoma TX542-3D, XGA, 2800 ANSI Lumens, 3D-Multimedia Projector Easy-to-read text ? bright at 2800 ANSI lumens and high 3000:1 contrast ratio Broadcast messages to the projector over the network Low power consumption - sub-one watt standby mode Remote management and control via RS-232 or RJ45 and built-in closed captioning 3D content can be viewed with active LCD shutter glasses when the projector is connected to a computer with a compatible 3D graphics card.