The Panasonic PT-VX600U Projector features a high brightness of 5,500 lumens and a variable iris that produces a high contrast ratio of 10,000:1. The end result is a sharper and brighter picture. The Daylight View Basic technology in this projector achieves sharp, easy to see images by clearly reproducing the dark image areas, which were previously difficult to see in brightly lit rooms. A built-in sensor measures the ambient light and the Daylight View Basic function adjusts the halftone color and brightness level according to the surrounding illumination.