The D518 3D Multimedia Mobile Projector from Vivitek is a high-performance DLP projector designed for uses ranging from a permanent ceiling mount to simple desk placement. Weighing in at 4.2 pounds (1.9kg), the projector is a great travel mate and perfect for the mobile user. With 3000 ANSI lumens of brightness, whether on the college campus or the meeting-room, the projector delivers crisp performance. The D518 is one of those projectors with a plethora of built-in security features. It includes a Kensington security lock, which is built into the projector to prevent theft or any unauthorized removal of the projector. It also includes a keypad lock that prevents accidental system adjustments. A slew of connectivity options include HDMI x 1, VGA-in, composite video, and S-video. It also includes a 33dB/30dB (standard/economy mode) super-low fan