This document provides specifications for several large format LED display models for indoor and outdoor use. The displays range in size from 2.1 x 1.6 meters (DS0616) to 3.7 x 2.2 meters (DS3522). All displays feature high resolution, brightness uniformity, contrast ratio and long lifetime. Outdoor models have an operating temperature range of -20 to 45 degrees Celsius and weather protection of IP65.