DELL 1650, 3800 ANSI lumens, DLP, WXGA (1280x800), 2200:1, 16:10, 36.2 - 362.7" DELL 1650. Projector brightness: 3800 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 3000 h, Service life of light source (economic mode): 5000 h. Zoom type: Manual, Zoom ratio: 1.2:1, Throw ratio: 1.28 -1.536. Analog signal format system: NTSC 3.58, NTSC 4.43, PAL B, PAL D, PAL G, PAL H, PAL I, PAL M, PAL N, SECAM B/G, SECAM D/K, SECAM..., Supported graphics resolutions: 1280 x 800 (WXGA), Supported video modes: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Serial interface type: RS-232