Tech Specs Projection System: Single Chip DLP LVDS Native Resolution: SVGA (800 x 600) Brightness (ANSI Lumens Max.): 3,200 Contrast Ratio: 2,200 : 1 Typical (Full On / Full Off) High Contrast Mode: 10,000 : 1 Native Resolution: SVGA (800 x 600) Quick Shutdown: Yes Aspect Ratio: 4:3 User-Replaceable Lamp: Top-loading Projector Lens: F-Stop: F/2.41~2.55 Focal length, f = 21.8~24mm Lens Offset: 115 ±5% Throw Ratio: 1.95 (wide) - 2.15 (tele) Projection Distance: 1.2m ~ 10.0m (3.94 ft ~ 32.81 ft) Hsync Frequency: 15K-100KHz Vsync Frequency: 50-85Hz Keystone Adjustment: Manual Vertical (±40°) Tilt: Front tilt adjustment wheel (-5°~ 5°) Screen Size - Diagonal: 27.5" ~ 252.4" Colors: 1.07 billion 3D-Capable: Yes Mounting Options: Front / Rear / Ceiling / Tabletop Light Source Lamp Type / Light Source: Philip 195W user-replaceable Lamp Hours (Light Source Life): Up to 5K (Nor) Up to 6K (Eco) Audio and Speakers Noise Output Normal Mode: 34 dB(A) Typical Eco-Mode: 31 dB(A) Typical Audio (Built-in Multimedia Speaker): 1x 2W Connectivity Power: 1x AC Power HDMI : 1x HDMI 1.4a Audio In (3.5mm): 1x Audio-In (3.5mm) Audio-Out (3.5mm): 1x Audio-Out (3.5mm) VGA In: 1x D-Sub VGA-In VGA-Out: 1x D-Sub VGA-Out Composite Video: 1x Composite Video RCA Powered USB: 1 x Powered USB-A (5V/1.5A) Security Kensington lock slot Password protection Dimensions Height: 87.6 mm (3.45 inches) Width: 314.4 mm (12.38 inches) Depth: 223.5 mm (8.8 inches) Weight: 2.4 kg (5.4 lbs)