On July 27th , Lonjing held the factory acceptance test of high frequency power supply for South Africa project by video system, Because of Covid-19, the client can not come to China to witness the test, but thanks to convenient modern communication system, clients can view the test process and operation vividly and communicate at any time with Lonjing people, the remote FAT was very successful. Lonjing held such remote FAT at its first time and the left ones for this project will also have such remote FAT.