Epson L570U. Projector brightness: 5200 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WUXGA (1920×1200). Light source type: Laser, Service life of light source: 20000 h, Service life of light source (economic mode): 30000 h. Focus: Manual, Focal length range: 20 – 31.8 mm, Aperture range (F-F): 1.5 – 1.7. Serial interface type: RS-232C. Noise level: 31 dB, Noise level (economic mode): 23 dB, High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)