Optoma ZK810TST. Projector brightness: 7200 ANSI lumens, Projection technology: DLP, Projector native resolution: UHD 4K (3840x2160). Light source type: Laser, Service life of light source: 30000 h. Focal length range: 9.69 - 11.19 mm, Zoom type: Auto, Throw ratio: 0.65:1 - 0.75:1. Serial interface type: RJ-45, RS-232. Noise level: 38 dB, Noise level (economic mode): 34 dB, On Screen Display (OSD) languages: Arabic, Simplified Chinese, Traditional Chinese, Czech, Danish, German, Dutch, English, Spanish,......
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