Acer h7550st projects clear and wide images of up to 100 inches diagonally from as little as 49 feet 15m from the screen thanks to short throw technology a high 3 000 lumens brightness and a native 169 aspect ratio due to its ability to project a large picture from a short distance its perfect for consumers who will be using the projector from the comfort of home for enjoying movies games and karaoke even within smaller rooms its also a great option for educators for projecting less