BenQ MP780ST, 2500 ANSI lumens, DLP, WXGA (1280x800), 3000:1, 1219.2 - 7620 mm (48 - 300"), 16.78 million colours BenQ MP780ST. Projector brightness: 2500 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): 4000 h. Digital zoom: 2x. Analog signal format system: NTSC, PAL, SECAM. Serial interface type: RS-232 https://www.projectorreviews.com/benq/benq-mp780-st-short-throw-wxga-interactive-dlp-projector-review/ The BenQ MP780 ST is a short throw WXGA (1280x800) DLP projector that is aimed directly at the teacher or presenter desiring an interactive presentation experience. With its innovative interactive pen and accompanying software, combined with two ... The BenQ MP780 ST ticked all the boxes one would list when looking at the necessary features of an interactive short throw projector.  It's bright, quiet and has plenty of power in its built-in sound system.  It has every type of input you could want and... https://www.projectorcentral.com/BenQ_MP780ST_Interactive_Projector_Review.htm The BenQ MP780ST interactive projector delivers high quality data images, excellent connectivity, and better than usual audio quality at what is a low price for an interactive WXGA projector... The MP780ST is one of several projectors built around TI's interactive technology. They all offer similar strengths, including a short throw, no need for calibration, and letting you use any surface as a whiteboard. However, only some of those competi...