BENQ W4100i Projector Black

BenQ W4100i. Projector brightness: 3200 ANSI lumens, Projection technology: DLP, Projector native resolution: UHD 4K (3840x2160). Light source type: LED, Light source life: 20000 hour(s), Light source life (economic mode): 30000 hour(s). Focal length (f): 17.02 (Wide)~22.21(Tele), Aperture (F-F): 1.8 - 2.25, Zoom ratio: 1.3:1. Supported graphics resolutions: 640 x 480 (VGA), 3840 x 2160, Video color modes: Bright Cinema. Serial interface type: RS-232, HDMI version: 2.0b/2.1