The development of green and sustainable system lighting solutions is the key to the development of new light sources as the kinetic energy of various new light sources enters the market. The combination of new energy and new light source to achieve true "green lighting", whether from the concept or concept advocated by it, or from the feasibility of current technological development, is attractive enough, especially with widespread attention. The solar technology is getting better and better, and a storm of new energy and new light source is set off. Xue Yuzhi, a professor at Dalian Jiaotong University, pointed out that the combination of photovoltaic power generation and lighting can effectively reduce urban electricity consumption. The use of solar renewable energy and the development of a series of new products jointly used by photovoltaic and optoelectronic products will form a relevant industrial chain and form a new economic growth point, which is of strategic significance.
The photovoltaic and optoelectronic integrated system saves space and can be installed on site with broad market prospects. At present, China has been in the forefront of the world in the field of solar photovoltaic lighting application products. Some devices have accounted for more than 80% of the world's production and sales. The products mainly include solar LED street lights, lawn lights, garden lights, flashlights, traffic lights, signs. , solar LED advertising screens, etc. Among them, the lawn lamp adopts LED to have the advantages of convenient control of color, change of light distribution, dynamic phantom, low-voltage DC flooding, low cost of light source control, etc., so that the cost performance of solar lawn lamp has been greatly improved, and it has become a solar energy application. The biggest highlight. At present, China has become the world's largest producer of solar LED lawn lamps. Solar lawn light is a project in China's current solar photovoltaic industry that operates according to market rules. It has not received government financial subsidies and subsidies. It has digested a large number of solar cells and is the only true semiconductor lighting product that uses ASICs to control illuminating.
Meng Zhaoyuan, deputy chief engineer of Wuxi Suntech Power Company, pointed out that because most of the solar lawn lamps are exported and used less domestically, people don't know much about such products, and they have not attracted enough attention and attention from the industry. With the advancement of the solar photovoltaic industry and the LED industry, the solar lawn lamp industry has grown rapidly and has become a barometer of the development of solar photovoltaic and LED industry. Solar lawn light is one of the important applications of LED. In the future, there will be a broad market in China. The industry and the government should pay attention to it and introduce relevant standards as soon as possible to standardize products and markets. Meng Zhaoyuan also pointed out that the uneven quality of products and outstanding quality problems are the biggest problems in the development of solar lawn lamps in China. Although the output of solar lawn lamps is huge, the quality of the products is worrying. Many products have better quality in the first year. After that, they are worse than one year. They are counterfeiting, cutting corners, and hitting prices. Some products have become garbage after export, which has damaged the reputation of China's manufacturing industry. In response to the above problems, Meng Zhaoyuan believes that the main reason is that so far, there is no product standard in China that can guide the production of solar lawn lamps and judge their quality, although many companies have also established their own corporate standards, due to most manufacturers. For the deviation of the understanding of photovoltaic lighting technology, these standards are relatively one-sided, can not cover all the technical requirements of solar lawn lights.
In addition, while the “Ten Cities and Ten Thousand Miles†project promotes the development of LED street lamps in China, it also creates a huge market opportunity for solar LED street lamps. As a convenient source of energy, solar energy has the characteristics of independence, easy installation, no need to install cables, low maintenance cost, clean and environmental protection, etc. It is an ideal source of road lighting power. LEDs have low power, fast response, and improved light efficiency, making them the best source of light complementary to photovoltaic technology. Therefore, solar LED lighting, which integrates the advantages of solar photovoltaic power generation and LED lighting, is an ideal solution for replacing ordinary street lamps based on conventional light sources in the long run. However, the current independent photovoltaic system has a small power, which cannot meet the lighting requirements of the main road, and the photovoltaic mains complementary LED road lighting system can meet a wider range of practical needs.
Solar LED lighting combines solar technology and semiconductor lighting technology to give full play to the advantages of both, and achieves the goal of energy saving, environmental protection and environmental protection. However, since solar LED lighting is still in the stage of technological development, system efficiency and system reliability have to be greatly improved. In particular, the reliability and recovery of controllers, rectifiers, and energy storage devices that are compatible with the system have become the constraints of solar LED lighting. The bottleneck, meanwhile, due to the higher price of solar cells and LEDs has also become a factor hindering the popularity and promotion of solar LED lighting in the application field. Therefore, LED, silicon materials, solar cell and component manufacturing, integrated circuit design and manufacturing all have the power to solve technical problems, so that solar LED lighting, whether it is energy-saving, effect or price, is more in line with market demand is an urgent problem to be solved. It is believed that with the continuous development of technology, solar LED lighting products will play an increasingly important role in the future lighting field.
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