This Promethean PRM-45A DLP projector is a home theater projector with a short-throw ratio, making it ideal for smaller rooms. With a brightness of 3600 ANSI lumens and a contrast ratio of 15,000:1, it delivers clear and vivid images with deep blacks and bright whites. The native resolution of 1280 x 800 and maximum resolution of 1080i ensure high-quality visuals, while the aspect ratio of 16:10 provides a widescreen display. This projector is compatible with various operating systems such as Linux, iOS/Mac, Windows, and Android, and features various connectivity options including HDMI (MHL), USB Mini, VGA/SVGA D-Sub, and LAN. Its built-in speakers, ceiling projection, short throw projection, and projection tilt features make it convenient to use. Please note that projector lamps contain mercury, as stated by the California Prop 65 Warning.