Acer Essential X1127i. Projector brightness: 4000 ANSI lumens, Projection technology: DLP, Projector native resolution: SVGA (800x600). Light source type: Lamp, Service life of light source: 6000 h, Service life of light source (economic mode): 10000 h. Focal length range (f-f): 21.85 - 24.01 mm, Aperture range (F-F): 21.85 - 24.01, Zoom ratio: 1.1:1. Analog signal format system: NTSC,PAL,SECAM. HDMI connector type: Full-size