After decades of development, LED from the original red and yellow, now developed to today’s high-brightness white light, luminous efficiency of laboratory records over 160lm / W, industrialization level has more than 100lm / W. High-power white LED street lighting products in the field of general lighting applications continue to get new breakthroughs, so that LED street lighting in the city of applications can be possible. Compared with traditional lamps, LED street light because there are energy saving, environmental protection and other advantages, in 2009 will become “Ten City, ten thousand” pilot projects to promote the object. However, as an emerging industry, LED high power lighting products lifetime and lumen issue has become the focus of debate in the industry.
For this problem, Shenzhen, 63 LED street light, 27 enterprises stressed statistics. From March 18 2009 to March 5, 2011, in normal light switch every case, the total number of 17 put out the lights, accounting for 27.0% of total participation in evaluation lamps, involving 11 companies, accounting for evaluation of enterprises involved of 40.7%. eneltec evaluate LED street life that it should go to the field to test, and evaluate LED street light failure should be tested in the laboratory; Meanwhile, LED street light overall stability have a gap compared to traditional light. There is not much good LED street light, and good business is more difficult to find, There are more poor LED street, and also good LED street.
On the Shanghai Illuminating Engineering Society analysis, eneltec point out that LED street light compared with high voltage sodium lamp, the biggest function is not energy saving, but in the control function. LED street light intelligent is the biggest advantage in the future, the maximum energy is easy to control. But the trend to large-scale application is to consider the cost, reliability and other issues, when these problems are resolved, the future is more promising.
With the development of LED industry, LED street light industry will move toward to specialization road, OSRAM Dr. Liu Jianping, senior director of product marketing raised, LED street lighting production need to modular, modular need to be standardized. No nodular, no development, no generic, no development.
LED technology is more mature, intelligent, increasingly high degree of standardization, and the application is also increasing. LED street light have been promoting due to energy-saving effect, but in practice, it is not good enough as the poor quality of lighting effect. Wu Chunhai director said, lighting quality and energy efficiency are the two wings of LED Street light off, so both are indispensable; it must strike a balance between the two. LED street light only have better lighting effects can be achieved to support and promote large-scale application.