BenQ MX520, 3000 ANSI lumens, DLP, XGA (1024x768), 13000:1, 4:3, 40 - 300" BenQ MX520. Projector brightness: 3000 ANSI lumens, Projection technology: DLP, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 6500 h, Service life of light source (economic mode): 4500 h. Focal length range: 2.56 - 2.8 mm, Aperture range (F-F): 21 - 23.1, Zoom ratio: 1.1:1. Analog signal format system: NTSC, PAL, SECAM, Supported graphics resolutions: 1024 x 768 (XGA), 1600 x 1200 (UXGA), Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720i, 720p. Serial interface type: RS-232, USB connector type: Mini-USB B