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Optoma HD28i - 4000 Lumens Full HD Projector Enjoy bright, sharp, and true-to-life visuals with the Optoma HD28i Full HD projector. Featuring 4000 lumens brightness and Rec.709 colour accuracy, it is perfect for sports, movies, gaming, and presentations in well-lit rooms. Key Features 4000 lumens brightness for clear images even in ambient light Full HD 1080p resolution delivering sharp, detailed visuals Accurate colour reproduction with Rec.709 colour gamut support Low input latency ideal for gaming and fast-moving content Full 3D support compatible with 3D Blu-ray players and gaming consoles Integrated 2W speaker for convenient audio without external speakers Multiple connectivity options including HDMI 1.4a with MHL, VGA, composite video, and USB-A power Eco+ technology for energy saving, extended lamp life, and reduced power consumption Quick resume and direct power off for easy operation and energy efficiency 24/7 operation capability designed for continuous use in business or education environments Specifications Display technology: DLP™ Resolution: 1080p Full HD (1920x1080) Brightness: 4000 lumens Contrast ratio: 50,000:1 Aspect ratio: Native 16:9, compatible 4:3 Keystone correction: Vertical ±40° Throw ratio: 1.47:1 ~ 1.63:1 Projection distance: 1.2m - 10m Zoom: 1.1x manual Native offset: 115% Lamp: 220W Lamp life: Up to 10,000 hours (Education mode), 5000 (Bright), 6500 (Dynamic), 6000 (Eco), 7000 (Eco+) Connectivity inputs: 1 x HDMI 1.4a (3D support), 1 x HDMI 1.4a + MHL, 1 x VGA (YPbPr/RGB), 1 x Composite video, 1 x Audio 3.5mm Outputs: 1 x VGA (YPbPr/RGB), 1 x Audio 3.5mm, 1 x USB-A power 1A Control: 1 x RS232 PC compatibility: FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac 3D compatibility: Side-by-Side 1080i50/60, 720p50/60; Frame-pack 1080p24, 720p50/60; Over-Under 1080p24, 720p50/60 Security: Security bar, Kensington Lock, Password protected interface Noise level: Typical 29dB, Max 31dB Operating conditions: 5°C ~ 40°C, Max. Humidity 85%, Max. Altitude 3000m Dimensions (W x D x H): 298 x 230 x 96 mm Net weight: 2.82 kg Gross weight: 3.31 kg Power supply: 100 ~ 240V, 50 ~ 60Hz Power consumption: Standby 0.5W, Min 204W, Max 266W OSD languages: 25 languages including English, Arabic, French, German, Chinese (simplified and traditional), Spanish, and more What's in the Box AC power cord Remote control Battery Basic user manual