VIEWSONIC LSC731WU Projector Black, White

Viewsonic LSC731WU. Projector brightness: 7300 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WUXGA (1920x1200). Light source type: Lamp, Light source life: 20000 hour(s), Light source life (economical mode): 30000 hour(s). Focal length: 17.2 - 27.7 mm, Aperture (F-F): 1.5 - 2.08, Throw ratio: 1.2 - 2. Serial interface type: RS-232. Noise level: 37 dB, Noise level (economical mode): 27 dB