Featuring stunning WUXGA resolution and 4,500 lumens of brightness, the ViewSonic LS831WU Laser Projector is the ideal solution for modern business and education environments. Designed with a laser phosphor light source lasting up to 20,000 hours, this projector delivers long-term, virtually maintenance-free usage for any boardroom or classroom. With its 0.25 ultra-short throw ratio, HV keystone, and 4 corner adjustments, the LS831WU makes installation a hassle-free experience.