This Ultra short throw projector can project an 80-inch image from 0.75 meters away gives you an extraordinary big-screen experience in a limited space. The high contrast ratio of 15000:1 ensures rich image layering details and provides clear, sharp images for demanding audiences. Using the latest frequency conversion driving technology, the projector offers long life of lamp source, up to 10,000 hours (ECO mode) , reducing cost of user. 4000 lumens brightness ensures that the picture is still clear even in bright light environments. Even when projected directly onto a white wall, the picture remains clear.