The Acer S1283HNE is a short throw projector which is suitable for offices or classrooms. Short throws are suited for rooms which have limited space, meaning you can still project a large image from only a short distance away. It will also eliminate shadows on the screen. The impressive 3100 lumens brightness means that you can project with the lights on and blinds open. The S1283HNE offers an XGA resolution of 1024 x 768 pixels in a 4:3 format. This will be suitable for Power Point, spreadsheets, images and short video clips. If you want to show movies, WXGA (widescreen) resolution is recommended as movies are widescreen. However, XGA will still give you a sharp image on, for example, PowerPoint. The Acer S1283HNE has two VGA connections so you can connect to two laptops at the same time. Older video devices can be connected via S-Video and composite video. There is also a HDMI port which will allow you to connect to more modern sources and show your content in high definition. There is also a 10W built in speaker which is suitable for a medium sized audience with no additional audio systems required. Overall, this is a good projector that also comes with a 1 year warranty.