A wide array of connectivity options plus pointdrawtrade 30 and qdraw3 interactive features make the mx822st a complete classroom projector solution an ultra short throw ratio 130001 ultra sharp contrast ratio 3500 ansi lumen brightness and long lamp life ensure vibrant reliable visual performance time and again world leading smarteco technology for a greener environment as the first dlp brand to incorporate philips imagecare technology into its projector lamp system benq has taken a