Introduction China has become the world's largest producer and exporter of solar LED lamps, LED landscape lights and street lamps. There are dozens of LED street lamp enterprises with certain R&D capabilities and production scales in China, and dozens of application demonstration roads. In 2009, the Chinese government launched the “Ten Cities and Ten Thousand Miles†LED lamp exposure and energy conservation activities. In 2010, it has been clear that there are more than 10,000 LED lights in 21 cities nationwide. Among them, street lamps and 24 h continuous use of tunnel lights have become the first major replacement projects. Metros in Beijing, Shanghai, Guangzhou and Shenzhen have started to popularize LED lights. project. 1 LED landscape light The city continues to expand, expanding the market size of urban road lighting. Road lighting and urban lighting are further integrated, and the road lighting market will develop into the urban lighting market in the next few years. Including urban road lighting, landscape lighting, advertising lighting, etc. Urban landscape lighting is based on functional lighting. In fact, functional lighting has already formed a certain landscape effect at night. As a manifestation of modern social civilization, landscape lighting should be compatible with the current economic level of the city and rationally planned. The content of urban landscape lighting generally includes the lighting of public squares, buildings, commercial streets, landscaping, landscape sculptures, bridges and waterscapes along the roads. Based on the overall plan of the night scene of the urban area, the effect plan that reflects the style should be selected to determine the appropriate lighting method. LED landscape lights have been widely used in the 2008 Beijing Olympic Games, the 2010 Shanghai World Expo, and the 2010 Guangzhou Asian Games. (1) Shanghai Oriental Pearl LED Lighting Project In many cities in Europe and the Americas, mandatory landscape lighting restrictions have been formulated, mainly considering energy conservation and environmental protection. At present, a number of landmark buildings in Paris, Mexico, and Morocco have been retrofitted with landscape lighting. There are 576 light guide points in the Oriental Pearl Tower on the Bund in Shanghai. Before the renovation, the power consumption of each light guide point was 200 W. After the renovation, the power consumption of each light guide point decreased to 70 W. This transformation alone saved 65. The % power consumption, combined with improvements in control systems and other floodlights, initially estimated a nearly 75% reduction in power usage. The 576 luminous points of the Oriental Pearl-sized spheres use LEDs, and the diameter of the illuminants is as large as the cross-section of the basketball. The electricity saved by the Oriental Pearl every night can be used by more than 800 households for 4 hours per day. ( 2) Shanghai World Expo LED Lighting Demonstration Project China's 2010 Shanghai World Expo will have three semiconductor lighting demonstration projects: one is the LED full color display of the Expo permanent theme theme museum; the other is the 400 m2 large transparent LED display of the Expo World Expo permanent building; the third is the Expo Center 8 000 m Facade LED floodlighting and landscape system. In the entire Expo Park, 60% to 70% of the lights use LED lighting. During the 2010 Shanghai World Expo, all the landscape lights in the Expo Park made LEDs, and most of the street lights and indicators used LEDs. LED lighting accounts for more than 70% of the total lighting in the Expo Park. LEDs are used in such a large-scale and intensive manner in an area, which is the first time in the world. The energy-saving and environmentally-friendly LED lighting solution helped Shanghai World Expo 2010 become a green environmental event. Through the 1878 Paris World Expo, Edison invented incandescent electric lamps made of tungsten wire and began to enter thousands of households for the benefit of mankind. The LED lighting advocated by the Shanghai World Expo may be another revolution. Through the new LED lighting technology to change people's lives and the environment of the earth, the application of LED lighting coincides with the concept of the Shanghai World Expo.