Optoma HD81 1080p DLP High Definition Home Theater Projector Advanced 1080p DarkChip3 DMD DLP technology Bright 1400 lumens and 10000:1 contrast ratio delivers subtle details and vibrant images Extensive connectivity options through image processor includes: three HDMI plus one external HDMI expansion, two BNC component (YPbPr/RGBHV), two component, three s-video, three composite video, one VGA, RS-232, two 12V triggers, one IR port extension IR remote control with discrete IR codes for source and format, selection perfect for home theater automation 16-step auto and manual iris