LED street lamps in mainland China can not promote strong twist melon"

The LED lamp can not force promotion now, uneven product quality, the price is expensive, 'ten city lights' project' is defeated, keep on fighting. "Some of the excitement of Jiangsu Province, Southeast University Ph.D. lighting honorary chairman of the society of Professor Yang Zhengming on this issue, he believes that LED is a good source, should take advantage of, but is not the best use of large-scale promotion and. "Whether to replace the existing high-pressure sodium lamp should be decided by the market.

High pressure sodium lamp and high pressure mercury lamp coexist for 10 years. If you really want to replace, ceramic metal halide lamp is better than LED lamp. In Professor Yang Zhengmin's view, LED is used as a light source lamp, the lamp is good, but as a lamp is required to be five or six years of development, the market really mature, also need to improve quality of LED street lamp.

The advantages of LED street lamp has not been played out. LED lamp is adjustable light, dynamic operation, and the traditional HID can not. Fudan University Electrical Engineering Department, China Institute of lighting consultant professor Zhu Shaolong believes that smart lighting is the best way to use LED lights. "The car came a little light, car taillight go dark, some foreign city has begun using this technology. At present, mainland enterprises may have reached such technical requirements, but it requires sensor control, large capital investment, so there is no practical application. "

At this stage, compared with the previous few years, the technology of LED street lamp is not new, in addition, in terms of light efficiency, performance, evaluation and other key indicators of LED street lamps are also more controversial.

"LED is a point light source, if the application is not good, prone to glare problems. Moreover, from the perspective of the entire industry chain, LED street lights related to the radiator, the driver, the high-pressure sodium lamp replacement costs are not necessarily more money. Hangzhou Mingda photoelectric LED product research institute Wu Mingfan believes that LED street lamp for high technical requirements, the current large-scale replacement also need to look.

In addition, the current evaluation of road lighting indicators using the "illuminance" rather than "brightness"". Professor Zhu Shaolong pointed out that only when the light reaches the bat type light, illumination can replace the brightness. The actual situation is due to the brightness of the measurement instrument is expensive, the penetration rate is not high, so in order to facilitate the general use of illumination instead of brightness. Evaluation system vulnerabilities, LED Street quality is difficult to guarantee.

For the government to promote the transformation of LED lighting projects, enterprises have their own views. "The government subsidies, is able to solve the enterprise can fundamentally as pressing danger, but save enterprises need different. Government projects in the end whether the product is qualified, can only rely on time to test. "The general manager of Hangzhou Hongjian Liming Technology Co. Ltd. Zhang Feng concerns, the government palliatives, but excessive administrative intervention may let LED industry become" second photovoltaic". At the same time, he also pointed out that in the face of such impetuous market, companies need to clear their own direction of development, rather than being supported by the government around the project.

Of course, the government's support for the LED industry is certainly helpful to promote the development of the industry from the macro. But the current situation is that local governments only price, not quality, and not from the point of view of affordable. The market was "muddy", the lack of guidance of the government intervention will only stir more mixed. Wang Wei is not without worries.