Resolution 1080p 1920 x 1080 Brightness 3000 ANSI Lumens Contrast Ratio 28,000:1 Lamp Life (hrs) Throw Ratio 0.49:1 (distance/width), 3% Variance Zoom Type Digital 0.8 to 2.0 I/O Connectors Two HDMI v1.4a, 3D VESA, audio-out, USB mini-B, 12V trigger Speaker (Watts) 2x10W Speaker Audio 10W Speaker Keystone Correction +/- 40o Vertical Aspect Ratio 4:3 compatible Offset 116% Projection Screen Size 45.3 inch to 303.2 inch Projection Distance 1.64 inch to 11 inch (0.5 to 3.35 m) Projection Lens F2.8, f7.42 mm and focus Uniformity 80% Maximum Resolution 1920x1200 WUXGA Computer Compatibility WUXGA, UXGA, SXGA+, WXGA+, WXGA, SXGA, XGA, SVGA, VGA Video Compatibility NTSC, PAL, SECAM, SDTV (480i), EDTV, (480p), HDTV (720p, 1080i/p) 3D Support Supports all HDMI 1.4a mandatory 3D formats (Frame pack, side-by-side, top-bottom) and up converts frame rate from 60Hz to 120Hz or 24Hz to 144Hz (i.e 60 or 72 frames per eye). 3D glasses are needed and are sold separately. Refer to user manual for details.