On May 24, a total of 11 PALM exhibition technical exchange meetings were held, including 4 exchange meetings organized by the organizer and 7 exchange meetings organized by enterprises. The four exchange meetings held by the organizer covered stage machinery, lighting art, lighting technology and multimedia displays, and the audience responded enthusiastically.

In the W102 exchange room, Mr. Xing Xin, a first-class lighting designer of the National Theatre of China and an outstanding expert from the Ministry of Culture, gave a speech on "Introduction and Reflection on the Application of American Stage Lighting Technology". The objective view of the development and application of LED light source, combined with its own design experience, discusses the application of LED lighting in domestic stage lighting design. This paper introduces the current situation of American theater lighting equipment, details the design and configuration of its face light and slap, and discusses the configuration and use of domestic theater lighting. Comparing the status quo of stage lighting in my country and the United States, this paper elaborates in-depth thinking and suggestions on the application of stage lighting technology, stage lighting design and audience aesthetic taste in China.

Wang Yimin, the chief architect of Zhejiang Architectural Design and Research Institute, came to the exchange room early. He said that the major of theater construction is closely related to the configuration of stage lighting. Therefore, he is very interested in this speech and hopes to get useful lessons. A female college student in a related major who did not want to be named said that she had seen a drama designed by Mr. Xing Xin before, but she did not expect to hear his speech in person at the exhibition site. The teacher's speech was a great inspiration to her, and this exhibition was a worthwhile visit.

In the W103 exchange room, Ms. Gabriele Hogg, Vice Chairman of the German Theatre Technology Association and CEO of German Hoack Welding Technology Co., Ltd., gave a speech on "Multiple Ways of Horizontal Movement on the Stage - The Development Trend of Horizontal Movement of Stage Sets" He gave a speech on the topic of "The Future", and introduced the historical background of the stage horizontal movement, the stage car system common in today's theaters, and the most advanced stage horizontal movement equipment. The following aspects are described in detail: manual motion equipment; active equipment, that is, the driving equipment is integrated with the motion equipment; passive equipment, that is, the driving equipment is on the stage; linear motion; rotational motion; free motion; mixed motion of many different motion modes. Various truck systems will also be introduced, such as: gear drives, chain drives, radio drives, inductive power transmission and now the most advanced laser positioning truck systems.

The exchanges held by the organizer also included "Development Trends of Lighting and Multimedia Control Systems" and "Introduction to ETC's Latest LED Lamps and Control Platforms", which also received good responses.