This certification aims to train engineers with practical skills in LED display operations. It is intended for technical support engineers, after-sales engineers, and rental engineers who have passed Level 1 certification. Candidates will master debug LED displays, perform basic configurations of receiver and sender cards, and troubleshoot common faults and maintenance procedures. Upon certification, engineers will be capable of independently handling the installation, debugging, and basic maintenance of small and medium-sized LED display projects, providing technical support and troubleshooting services.