Viewsonic PJ759, 2800 ANSI lumens, LCD, XGA (1024x768), 500:1, 4:3, 762 - 7620 mm (30 - 300") Viewsonic PJ759. Projector brightness: 2800 ANSI lumens, Projection technology: LCD, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 2000 h, Service life of light source (economic mode): 3000 h. Focus: Manual, Zoom type: Manual, Zoom ratio: 1.2:1. Analog signal format system: NTSC 4.43, NTSC M, PAL, SECAM, Supported graphics resolutions: 1600 x 1200 (UXGA). Serial interface type: RS-232