Many people may ask, how can beautiful LED lights decorate ordinary homes? At the 8th Youth Academic Annual Conference and the branch meeting of the Nanjing Lighting Society, experts at the meeting pointed out that LED lights save 80% of electricity compared to energy-saving lamps. Good performance, but far higher than the price of incandescent lamps, will still become one of the obstacles for green LED light sources to enter ordinary homes. Experts believe that it is caused by the following points: (1) Although LED lamps have superior performance and promotion, they are not satisfactory. LED light sources are more energy-saving. For example, a 5-watt LED bulb for a household can be replaced by an 11-watt energy-saving lamp. , A 90-watt LED lamp for street lamps is equivalent to a 250-watt high-pressure sodium lamp. Of course, the more important significance is environmental protection. Energy-saving lamps contain mercury. Once disposed of properly, mercury will definitely pollute my soil and groundwater in the future, and this pollution will last for a long time, while LED lamps do not have any pollution in the combined TV cabinet. . Shen Ru, secretary-general of the Nanjing Institute of Lighting, told reporters. According to Secretary-General Shen, at present, LED light sources are used very well in Nanjing municipal engineering, and the quantity is relatively large. The renovation of Wuzhong Road before October 1 last year, basically all LED light sources used in landscape lighting, have all passed the acceptance inspection in the first half of this year, including the completed renovation of Xuanwu Lake and the overall renovation of Longpan Road to be done soon. See all LED light sources. (2) The market popularization of LED prices needs to be reduced by 3 times. Manager Hu, general manager of Mingyang Lighting, told reporters that at present, architectural landscape is the largest LED application field in China, but the most potential is the home improvement market. After all, China's population is placed in There. If LED wants to enter the home improvement market, the most urgent thing to do is to reduce the value. The average lifespan of energy-saving lamps is 6,000 hours, while that of LED lamps is 50,000 hours, which is almost 8 times the relationship. Therefore, if the price of LED lamps is controlled below 8 times, a considerable number of people will definitely accept it. Three years ago, the ex-factory price of a 40-watt LED tube was about 300 yuan, but now most products are priced between 140-160 yuan. On the basis of price reduction, the products that used to be 5-6 lumens have now been upgraded to 7 lumens (product quality has improved). It can be said that the price of LED lighting products has dropped significantly. Zhou Ye also told reporters that although most of the LED core technology and patents are in the hands of others, domestic enterprises have not given up scientific research in this area, and have also achieved some achievements in recent years. Before 2002, domestic LED chips were completely reliant on imports. In 2006, the domestic demand for LED chips was 66 billion, and 37 billion were imported. The localization rate has reached 44%. Although there is no clear figure in recent years, it is certain that localization exceeds 50%. fact. Therefore, experts believe that the biggest competitor of LED lamps is energy-saving lamps, but the price is only about 10 yuan, and the price difference of more than 10 times seriously plagues the popularization and promotion of LED lamps. It is unrealistic to reduce the interest of LED lamps to the same level as energy-saving lamps. However, according to industry practice, if the price of LED lamps falls to the range of 40-60 yuan (about 3 times), consumers should accept it. Will truly replace the energy-saving lamps, into the ordinary home. Professional production, manufacturing, research and development of high-pole lights industry side. In the composition of the entire LED industry chain, LED epitaxial wafers and chips account for about 70% of the industry's profits, LED packaging accounts for about 10%, and LED applications account for about 10%, while China's LED industry is more than 70% concentrated in the middle and lower reaches of the industry, which are profits thinnest part. Most of the LED upstream core technologies and patents are in the hands of others. Secretary-General Shen Ru told reporters that at present, domestic LED epitaxy materials and chips are mainly low-end, and more than 80% of power LED chips and devices rely on imports. What's more worrying is that quite a few Chinese LED application companies have not paid the patent royalties, which makes their products face the risk of infringement at any time in overseas markets. In addition, domestic
solar street light manufacturers mainly focus on the fields of architectural landscape lighting, large-screen display, traffic lights and other fields, resulting in a lack of product development for ordinary people. Indeed, at present, LED products themselves also have some problems, among which there is still some gap between the color rendering index and the top ten brands of gas water heaters into the light source. That is to say, its light efficiency is already very high, and it can be used completely, but there is still some gap between the comfort and the light environment and the radical light source. In addition, there are still some areas that need to be improved in the research and development of its supporting products, supporting lamps, and current drive parts. Overall, these two aspects limit the further promotion of LEDs.
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