LG BF50NST, 5000 ANSI lumens, DLP, WUXGA (1920x1200), 3000000:1, 16:9, 40 - 300" LG BF50NST. Projector brightness: 5000 ANSI lumens, Projection technology: DLP, Projector native resolution: WUXGA (1920x1200). Light source type: Laser, Service life of light source: 20000 h. Focus: Manual, Zoom ratio: 1.6:1, Throw ratio: 1.3 - 2.08. Serial interface type: RS-232C. Noise level: 29 dB, Noise level (economic mode): 26 dB, On Screen Display (OSD) languages: English, Korean