... , entertainment centers.Exhibition centers, conference rooms, presentation centers. Alibaba China PH 7.62 SMD indoor LED Display ItemParameterPixelPhysical pixel pitch ... -20°C~ +50°CDriving method: Constant driving current, Scan: 1/8Refresh frequency: 1200HzHumidity(RH): ≤ 90~95%Protection grade: IP64Working ... LED Technology Co., LTD CES LAS VEGAS 2013 Alibaba China PH 7.62 SMD indoor LED Display