250ANSI Projector: Technical Solution for Low-Light Scene Demand

　　1. Core Technical Parameters

　　Optical Performance: 250ANSI lumens (real-tested per ISO 21118), light efficiency ≥80lm/W (15% higher than industry average); native 720P (support 1080P decoding), pixel density 1.07M pixels.

　　Color Accuracy: Rec.709 gamut coverage ≥92%, Delta E≤2 (color deviation invisible to naked eye); 2000:1 static contrast (dynamic contrast 10000:1 via HDR10).

　　Optical System: All-glass lens (anti-abrasion, transmittance ≥95%), ±40° vertical keystone correction (hardware-driven, response time <0.8s); focus precision ±0.1mm.

　　2. Scene-Specific Technical Adaptation

　　Bedroom/Home Use: TÜV 莱茵低蓝光 (Low Blue Light) certification, 22dB ultra-quiet fan (airflow 8CFM, noise ≤22dB); supports 50-100 inch projection (optimal 70-inch at 2.1m distance).

　　Micro Office (3-5 people): HDMI 1.4 (4K@30Hz input), USB 2.0 (UHD video decoding); auto-source detection (response time <1.5s); compatible with wireless display (Miracast/Chromecast).

　　Night Camping: DC 5V/2A power input (works with 10000mAh power bank for 2.5h use); IPX2 dustproof (filter mesh with PM2.5 isolation rate ≥90%); low-power mode (18W, 30% energy saving).

　　3. Reliability & Maintenance Tech

　　Heat Dissipation: Dual 风道 (dual fans) + aluminum heat sink (heat dissipation efficiency 12W/℃); operating temp range 0-40℃.

　　Lamp Life: LED lamp (18000h lifespan, 5000h no brightness decay); replaceable dust filter (service cycle 6 months).

　　4. Technical Support

　　OTA firmware upgrade (supports function expansion); 1-year technical warranty (includes lens calibration service); contact tech@[yourbrand].com for spec docs.

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