Longman held a product launch event during the "Guangzhou International Lighting Exhibition" on August 4, 2021. Many lighting designers came to visit our product launch event. In 18 years, we are here to share with friends and teachers in the design industry. The exquisite lighting effects and the complete service support we provide amaze the guests. We listened to the demands of their project. At the end of the meeting, the guests were still full, and the meeting was a complete success!