Huahai P20 high quality Outdoor led Display 1.High quality,High brightness 2.Best price,long lifespan 3.CE,FCC,ROHS Huahai P20 high quality Outdoor led DisplayFeatures ... technology, brightness control technology, and nonlinearly rectifying technology2) Modularization, high resolution and high contrast design, vivid dynamic display3) Arbitrarily exchanging the display ...