From October 14 to 25, 2019, the 83rd IEC General Meeting was held in Shanghai. On October 16 to 17, IEC/TC34/SC34D/WG1 meeting was held in Shanghai Expo Center. Professor Senior Engineer Shi Xiaohong and Yang Yue, Senior Engineer Liu Erli of SQI SALT attended the meeting.

IEC/TC34/SC34D/WG1 belongs to the lighting working group and more than 30 experts from all over the world attended the meeting.