Acer U5313W, Short Throw. Projector brightness: 3100 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x 800). Service life of lamp: 3000h, Lamp type: OSRAM, Service life of lamp (economic mode): 4000h. Throw ratio: 0.35:1, Digital zoom: 2x. Analog signal format system: NTSC, PAL, SECAM, Supported graphics resolutions: 1280 x 800 (WXGA), 1920 x 1200 (WUXGA). Serial interface type: RS-232