1. Display technology: 3LCD
2. Light source: laser diode
3. LCD board size: ≥0.64"
4. Brightness: ≥6900 lumens
5. Resolution: ≥ 1920×1200 (standard), support 4K high-definition signal input
6. Contrast ratio: ≥5000000:1
7. Lens parameters: projection ratio: 0.44:1, 0 elevation
8. Light source life: ≥ 20,000 hours in normal mode and 30,000 hours in economic mode
9. Trapezoidal correction: vertical trapezoidal correction ±15°, horizontal trapezoidal correction ±15°, surface, barrel correction, four-angle hexagonal multi-point correction
10. Speaker: ≥16W
11. Input interface: VGA*1, Audio in (minijack, 3.5mm)*1, Video*1, HDMI*2, USB- A*1, USB- B*1 (displayable), RJ45*1 (displayable), HD BaseT (optional); Output interface: VGA*1, Audio out (mini jack, 3.5mm)*1, Control port: RS232*1, RJ45*1, USB-B*1
12. Net weight of the machine: ≥8KG
13. Have 26 national languages, with electrostatic dust net, high altitude mode: up to 3,000 meters