LED traffic display / LED traffic sign is widely used for highways, roads, and other traffic system for information posting, traffic leading for improving safety on the road. The display is controlled in the center of traffic system; through computer network or through wireless communication. For such display, pixel pitch 16mm, 20mm, 25mm and 31.25mm are mostly used, featuring high visibility, weatherproof, stable display effect, multi-way of display, anti-interference, brightness adjustable, around-clock operation, easy installation with specially designed cabinet and multi-way of controlling