The diverse and beautiful urban space and landscape environment provide people with rich material life and spiritual life, and lighting is like a sculptor, using rich lighting language to shape the historical accumulation and cultural crystallization of the urban nighttime landscape for people. to watch and use. With the acceleration of the urbanization process, the nighttime image of the city has also become an important measure to demonstrate the construction of urban modernization. At the same time, the successive introduction of landscape lighting standards and specifications has promoted the sustainable development of the landscape lighting industry.
However, the sustainable development of urban landscape lighting is not an easy task. It needs to start from the details of planning, design, construction, management and other links to ensure people-oriented, scientific application, art, energy saving and environmental protection. Under this objective demand, the development of LED provides technical support for the sustainable development of landscape lighting.
LED has been used since the early 1990s, but it was limited by technical bottlenecks. It was not until recent years that with the development of technological breakthroughs, it became an emerging light source that changed the global lighting industry pattern. spread.
LED lighting products have been widely used in the landscape lighting market with their excellent color expression, strong control ability of changing light and color change, small size, easy to hide, longevity, energy saving, stability and other characteristics, which has quickly driven the rapid growth of the lighting market. , and help landscape lighting to become the branch with the largest market share in LED lighting applications. A major disadvantage of traditional landscape lighting is that it cannot express the building itself very well, and it cannot present high-quality, artistic landscape lighting. LEDs are rich in color. In theory, only LED light sources can completely cover all saturated colors in the CIE chromaticity curve, that is, LEDs can produce almost any color through the organic combination with phosphorus; LEDs can be powered by low-voltage DC and are easy to dim. The field of landscape lighting has the incomparable advantages of other light sources.
According to statistics, the output value of my country's LED lighting market in 2010 has reached 126 billion yuan. It is estimated that the total market value of the global LED landscape lighting market in 2011 is expected to be 130 billion yuan, of which the cost of lamps and lanterns accounts for about 50% of the value, which is about 65 billion yuan. According to the calculation of 40 RMB/W, the global electricity consumption of LED landscape lighting in 2011 is about 1.625 million kWh. According to the calculation of 50% power saving of LED lamps, if all LED lamps are replaced, the world will save 1.825 billion kWh of electricity in 2011.