BenQ W5700S, 1800 ANSI lumens, DLP, UHD 4K (3840x2160), 100000:1, 16:9, 1.07 billion colors BenQ W5700S. Projector brightness: 1800 ANSI lumens, Projection technology: DLP, Projector native resolution: UHD 4K (3840x2160). Light source type: Lamp, Service life of light source: 4000 h, Service life of light source (economic mode): 10000 h. Focus: Manual, Focal length range: 14.3 - 22.9 mm, Aperture range (F-F): 1.81 - 2.1. Supported graphics resolutions: 640 x 480 (VGA), 3840 x 2160. Serial interface type: RS-232, HDMI connector type: Full-size, HDMI version: 2.0a