09 year old LED street lamp color temperature needs to break the 5 challenges

With the growing demand for energy saving and environmental protection, as well as the Ten City million semiconductor lighting project started, China has basically determined to LED outdoor lighting as the main direction. Among them, the LED street lamp has attracted much attention, the government as an important starting point to promote the lighting application market. In the development of LED chip and package technology, it is not difficult to find, many elevator, buses, aircraft cabin, catering shop entrance, even including the 2009 National Day parade, the stars of the concert, with LED lighting as the protagonist, glorious quartet. The milepost of landmark event, highlights the application of white LED in China has an increasing trend, and in environmental protection and energy saving issues for the global attention, including North America, Australia, Japan and Taiwan are making energy saving and carbon reduction regulations and lighting standards will help LED lighting applications market development. This also means that LED street lights will soon become the dominant technology in the field of road lighting lighting innovation, therefore, the people in 2009 as the year of the development of China's LED street lamps.

According to the experts' analysis: 2008 global LED street light penetration is only 0.5%, expected 2009 LED lamp permeability will be more than 1%, in 2010 reached 2.15%, the demand in every street is about 110 LED, estimated demand for the application of LED in the street will increase by 167% compared with last year, and is expected to break through the penetration of LED 5%, the demand is fast off the occasion. However, the question of whether the LED street lamp can reach the same level as the high pressure sodium lamp, and whether it can really save energy in the practical application, has aroused wide debate in the field of production and research. For a time, the sound of praise and doubt, and promote the coexistence of sidelines. In this regard, the special collection of experts from different angles to analyze the views and recommendations of the LED street lighting industry, and strive for the majority of people in the industry to reveal the truth of the LED street lights, analysis of key technology development challenges.

Analysis of technical problems of LED street lamp development

With the LED lighting market blowout into the market, LED Street development gradually clear. Many companies have vied for LED street market situation out of control. As a new type of solid state light source, LED has been used in more and more fields. For example, alternative neon lighting, can save energy 70%, LED traffic lights can save energy by 80%. It appears that the high cost is not the only factor that hinder LED enterprises to settle down with the market, companies still need to overcome the technical performance challenges. Although the LED industry has developed rapidly in recent years, but it is still a lack of authoritative technical standards, resulting in the industry as a whole, good and bad, for a wide range of promotion is very unfavorable. This is also the people of LED technology can evolve a little faster than the reality of desire.

In the relatively high degree of technical difficulty in the LED street lamp, the lack of technical standards is particularly evident. According to statistics, there are about 500 thousand street lamps in Shanghai, of which about 350 thousand urban areas, the use of semiconductor lighting, currently only a small section of Wuning road demonstration. Many LED manufacturers and integrators of excellent technology, do not know how to design a practical street lamp, the application can not clear the specific requirements of the department. Shanghai semiconductor lighting engineering and technology research center, for example, many manufacturers in order to solve the problem of LED heat dissipation, the design of a hollow type lampshade. But for street lamps, this style of "rain" function is not suitable for street lamps.

Another obstacle to the development of the cause of the LED street lighting for its application. Summarized as follows:

1, due to the LED street lamp is currently no formal standard specification, can not be fully promoted, in which the main parameters of LED for street lamps, such as: color temperature, color rendering (color rendering index) and glare has not been determined.

2, the price of LED street lamp is too high, the building owners of the street lamp is long system, which brings great difficulties to the popularization and application of LED street lamp.

3, the Ministry of construction of the newly developed street lighting design standards "urban road lighting design standards" (CJJ45-2006) in July 1, 2007 began to perform, which did not mention the use of LED street lights. In this regard, the relevant departments to organize the relevant personnel to seriously discuss whether the use of LED street lamps can meet the design criteria or the need to make any additional amendments as a formal standard specification requirements. Suggested that the relevant departments as soon as possible to develop the relevant standards of LED street lamp.

4, at present has not formulated the standard road test method using LED lights, LED street lamps not set (including LED lamp), did not put forward the main parameters of LED lamp includes color temperature, color rendering index, glare, light intensity (or illuminance), angle and thermal resistance and reliability index, standard test method for lamps not to develop LED lights. Proposed the establishment of a fair authority LED street lamp related testing institutions.

Government should not rely on excessive reliance

Street lamp is a public project, government investment is the key factor to promote the development of the market. But any products without additional value or social benefits, government investment alone to form a perfect market is very difficult, because the government can make the market soared overnight, is likely to disappear overnight, especially in Chinese such a high national policy execution, market uncertainty more.

Recent Chinese government related projects and plans have been put forward, so that the majority of domestic manufacturers LED street lamp market size is more optimistic estimates. But in fact, the number of construction or government projects, the implementation of the scale and the scale of the program there is a significant gap, coupled with the local interests of the dispute, manufacturers can get