Recently, the Harbin International Sports Convention and Exhibition Center replaced the high-pole lamp on the square with a new high-brightness LED high-pole lamp. It is understood that the LED high pole lamp can still work at minus 45 ℃. At present, LED lighting products are widely used, but due to factors such as price technology, they have not yet become common lighting sources, especially low temperature, which has further affected the application and promotion. According to Liu Jian, general manager of Gongda Optoelectronics Co. , Ltd. , the new high-brightness LED high-pole lamp installed in the exhibition center square is specially designed for extremely cold areas ,-It can still work normally at 45℃. The new LED high pole lamp consists of 120 lamps and contains 3600 LED lamp beads. For a few consecutive nights, the square lights of the shape lit up the night, and added a beautiful scene to the night scene of the Convention and Exhibition Center.