BenQ TK710. Projector brightness: 3200 ANSI lumens, Projection technology: DLP, Projector native resolution: UHD 4K (3840x2160). Light source type: Laser, Service life of light source: 20000 h, Service life of light source (economic mode): 20000 h. Focal length range: 16.88 - 21.88 mm, Aperture range (F-F): 2.48 - 2.78, Zoom ratio: 1.3:1. Supported graphics resolutions: 640 x 480 (VGA), 3840 x 2160, Supported video modes: 1080p. Serial interface type: RS-232, HDMI version: 2.0b
