NEC's 5500-lumen PA550W is a widescreen, advanced professional installation model that appeases corporate and higher education users. With integrated RJ45, optional high-speed wireless (LAN IEEE 80.11b/g/n) and a multitude of simple-to-use asset management technologies, the PA550W helps users present seamlessly without worrying about their technology. The industry's first built-in stacking correction capabilities (up to four projectors) allows the projectors to boost an image's brightness up to 22,000 lumens, which is ideal for larger-sized screens and environments with heavy ambient light. This feature also prevents the complete loss of an image, which can happen when using only one projector.