Model: K137i Color: White Native Resolution: WXGA (1280 x 800) Maximum Resolution: UXGA (1600 x 1200) Maximum Wide Resolution: 1080p (1920 x 1080) Contrast Ratio: 10,000:1 Brightness - ANSI Lumens: 700 standard, 560 economy Projection Lens: F = 2.0, f = 14.95mm; manual focus Projection Screen Size: 17" (43cm) 100" (254cm) Projection Distance: 1.8' (0.6m) 10.6' (3.2m) Throw Ratio: 62" @ 2m (1.50:1) I/O Connectors: Analog RGB via optional universal to VGA cable, HDMI/MHL (video, audio, HDCP) via included HDMI cable, microSD (SDHC), PC audio stereo mini-jack (input), PC audio via optional universal to audio cable (output), USB Type A (input) and USB Type A (control) sharing one interface, wireless projection via included USB adapter DLP 3D Ready: 3D content, 3D glasses and appropriately equipped PC also required to display 3D images Lamp Type: RGB LEDs Expected Lamp Life in Hours: 20,000 standard, 30,000 economy Projection System: DLP (Digital Light Processing) technology Projection Mode: Front, rear, front ceiling, rear ceiling Power: 100-240V AC