The ViewSonic PJD5533w is the ideal projector for the office or on campus. It delivers amazingly clear images with 2800 ANSI lumens, 15000:1 contrast ratio and XGA 1024×768 native resolution. The PJD5533w is packed with features including multiple PC and video input options, 1.1x optical zoom, keystone correction, PC 3D-ready/120Hz, support for HD signal, integrated speakers, and DynamicEco. With DynamicEco technology, presenters can place the projector in “standby” when they need to shift the audience’s focus, or when the projector is not in use, by simply reducing the brightness down to 30%—all without having to restart the projector. A filter-less design and energy-saving Eco-mode provide for virtually zero maintenance and product reliability and virtually zero maintenance. Measuring only 3.7" high with and weighing only 4.7 lbs, the slim design of the PJD5533w makes it the perfect projector for tabletop or ceiling mounted use.