2>Controlling software using of the LED screen system.
3>Common troubleshooting means of the LED panel system.
4>Field service support for the large scale for the LED sreen system.
5>Online support for some small common problems of the LED screen system.
6>FAQ training of the LED screen system.
7>LED & LED screen industry development knowledge.
8>LED & LED screen's basic knowledge.
9>LED display, LED cabinet, LED module & LED pixel's basic technical perimeter.
10>LED display industry development trend.