PROJECTOR 4000 LUMENS/PS502W VIEWSONIC

4,000 ANSI Lumens WXGA Short Throw Business & Education Projector? - 4,000 ANSI Lumens offering clear images in any environment?
- 0.52 Short throw ratio for minimal space consumption?
- Up to 300" ultra large screen with lower cost-per-inch??
- Easy and flexible connection: dual HDMI ports, USB Type-A port?
- Convenient software updates for projectors via USB connection