1. Display technology: 3LCD 2. LCD board size: ≥0.64" 3. Brightness: ≥6000 lumens (compliant with ISO21118 standard) 4. Resolution: 1920×1200 (standard) 5. Contrast ratio: ≥20000:1 6. Uniformity: ≥90% 7. Lens parameters: projection ratio: 1.08-1.76, F: 1.6-1.9, f=15.31-24.64, ≥1.6x optical zoom, lens vertical displacement ±40%, lens horizontal displacement ±10% 8. Light bulb life: energy-saving mode 4000H, normal mode 3000H Trapezoidal correction: vertical trapezoidal correction ±30°, horizontal trapezoidal correction ±15°, four-angle correction, surface correction