... P20 outdoor full color led sign 1,High brightness 2,Large viewing angle 3,Easy to maintenance 4,Waterproof , dustproof P20 outdoor full color led ... the cost,and make it easy to maintenance P20 outdoor LED display sign specifications.No. 1Part No.outdoor full color video ... ,P16,P20,P22,P25,etc.Different product could meet different need in viewing distance and resolution. P20 outdoor full color led sign