General Information Manufacturer/Supplier: Vivitek Corporation Manufacturer Part Number: D837 Brand Name: Vivitek Product Model: D837 Product Name: D837 DLP Projector Marketing Information: The Vivitek D837 meets today"s demanding video applications with extensive features and picture quality enhancements. DLP and BrilliantColor technologies for sharp and detailed image quality. Product Type: DLP Projector Technical Information Projection Method: Front Rear Ceiling Lens Minimum Lens Aperture: F/2.52 Maximum Lens Aperture: F/2.73 Zoom Type: Manual Zoom Lamp Lamp Power: 230 W Normal Mode Lamp Life: 3000 Hour Economy Mode Lamp Life: 4000 Hour Image Standard Mode Brightness: 3500 lm Color Supported: 16.7 Million Colors (24-bit) Native Resolution: 1024 x 768 Graphic Mode: XGA Maximum Resolution: 1400 x 1050 Minimum Projection Distance: 36" Maximum Projection Distance: 30 ft Diagonal Image Size: 300" Native Aspect Ratio: 4:3 Compatible Aspect Ratio: 16:9 Contrast Ratio: 2,500:1 Uniformity: 85% Vertical Keystone Correction: -15°/+15° Maximum Vertical Sync: 85 Hz Maximum Horizontal Sync: 90 kHz Video Video Signal Format: NTSC PAL SECAM Video Signal Standard: HDTV Input Scan Format: 1080i Output Scan Format: 720p Audio Number of Speakers: 1 Speaker Output Power: 2 W Speaker Output Mode: Mono Network & Communication Ethernet Technology: Ethernet Interfaces/Ports Number of HDMI Ports: 2 HDMI: Yes USB: Yes VGA: Yes Composite Video: Yes Network (RJ-45): Yes Power Description Input Voltage: 110 V AC 220 V AC Height: 3.5" Width: 11.0" Depth: 8.0" Weight (Approximate): 5.70 lb Shipping Information Shipping Dimensions : 16.0" Height x 7.5" Width x 11.25" Depth Shipping Weight : 9.62 lb Miscellaneous Package Contents: D837 DLP Projector AC Power Cord VGA Cable Carrying Case Remote Control Batteries for Remote Control Lens Cap User"s Manual (CD) Warranty Card Warranty Standard Warranty: 1 Year Parts Warr