Projection system: DLP® - Resolution: XGA (1,024 x 768) WUXGA (1,920 x 1,200) - Aspect ratio: "4:3 (Native), 16:9 (Supported)" - Contrast ratio: 20,000:1 Dynamic Black - Brightness: 4,000 ANSI Lumens (Standard), "3,200 ANSI Lumens (ECO), (Compliant with ISO 21118 standard)" - Lamp life: 6,000 Hours (Standard), 10,000 Hours (ECO), 15,000 Hours (ExtremeEco)* - Throw ratio: 1.94 ~ 2.16 (51"@2m) - Projection Mode: Front, Rear, Front-Ceiling, Rear-Ceiling - Projection lens: F= 2.41~2.53, f = 21.85~24.01mm, 1.1X Manual Zoom and Manual Focus - Projection Screen Size (Diagonal): 23" ~ 299" (58 cm – 759 cm) - Projection Distance: 1.0m ~ 11.8m (3.3' ~ 38.8') - Keystone correction: +/-40° (Vertical, Manual & Auto) - Noise level: "32 dBA (Standard), 24 dBA (ECO)" - Input interface: "Analog RGB/Component Video (D-sub) x 1, HDMI (Video, Audio, HDCP) x 1, PC Audio (Stereo mini jack) x 1, Composite Video (RCA) x 1" - Output Interface: "PC Audio (Stereo mini jack) x 1, DC Out (5V/1A, USB Type A) x 1" - Speakers: 3W Speaker x 1 - Control interface: "USB (Type A) x 1, share output port, RS232 (D-sub) x 1" - Network Interface: N/A - Dimensions: "313 x 240 x 113.7mm/ (12.3"" x 9.4"" x 4.5"")" - Weight: 2.8 Kg (6.17 lbs) - Standard Accessories: "AC power cord, Remote control, Battery for remote control, Lens cap, Quick start guide" - Optional Accessories: VGA Cable, Carrying Case