BenQ MS550. Projector brightness: 3600 ANSI lumens, Projection technology: DLP, Projector native resolution: SVGA (800x600). Light source type: Lamp, Service life of light source: 5000 h, Service life of light source (economic mode): 10000 h. Focus: Manual, Focal length range: 22 - 24.1 mm, Aperture range (F-F): 2.56 - 2.68. Analog signal format system: NTSC, PAL, SECAM. Serial interface type: RS-232, HDMI connector type: Full-size, HDMI version: 1.4a