LED display is widely used, its brightness is high, and the light is strong, which is easy to cause light pollution and light interference. In order to deal with problems such as light interference, the Ministry of Industry and Information Technology of China has specially formulated the "Specifications for Evaluation of Interference Lights for LED Display Screens". Auto Control Electrical Switch Series Auto Control Electrical Switch Series,Auto Timer Charge Switch,Auto Brake Switch,Electric Car Electric Switch Shenzhen huaxunde Technology CO.,Ltd. , https://www.huaxundekj.com