Present situation and future development opportunity of LED street lamp

Review: it is predicted that from 2014 to 2017 will be the global LED outdoor lighting replacement tide period, the global number of LED street lamps installed in the next 5 years will increase by a factor of 4.

Now, governments have advocated to replace the traditional lamp energy-saving renovation project to LED street, and to further promote the city level to two or three, then the "wisdom" of the lighting intervention, strengthen the LED Street advantage, which can then save 10-20% in the original LED energy-saving technology, coupled with the EMC mode of power, it is accelerate the popularization process of LED street lamp.

Even so, its popularity has not been scheduled, especially this year, the speed of LED street light significantly lower than expected, the growth rate slowed. By the general government, corruption and other objective factors, or is subject to the LED street lighting technology, market prices and other subjective factors? To this end, interviewed the light source and lighting Engineering Department of Fudan University professor Liu Muqing, to discuss the current situation and future development of LED street lights.

No specification into the biggest bottleneck LED street lights

At present, the main road lighting or high-pressure sodium lamp, LED street lamp and did not really replace it. In this regard, Liu Muqing said, from a technical perspective, compared with the LED high pressure sodium lamp, ifheavier, such as the light effect of the whole lamp, LED lamp can reach more than 100lm/W, and even with high pressure sodium lamps and ballasts, can only reach a maximum of 60 70lm/W, the optical efficiency of LED was significantly more than the high pressure sodium lamp, but also from the cost point of view, LED is not much than high pressure sodium lamp. But Liu Muqing also admitted that, although from a technical perspective, the market price, LED street lamp is not worse than the high-pressure sodium lamp, but it still needs a process of popularity. Specifically from the following three aspects:

First, LED street light effect is higher than the high pressure sodium lamp, which is just out of the technical level. In the market, the current LED industry is in the early stages of development, poor companies more than good companies, this part of the poor will cause the market for LED street lights misunderstanding: LED street lights". Therefore, how to make people understand and accept the good LED street lamps still need a process;

Two, with the accelerated development of the LED era, enterprises are gradually aware of the importance of product quality, continuous development of high quality, the quality of the overall market circulation products will improve;

Three, standardization problem. The traditional high pressure sodium lamp, is composed of a bulb, ballast and lamp three parts, lighting is one of the most easily broken parts, life is about 1-2 years, even if it is bad, it is very convenient to replace, because it is a standardized product, can replace any lighting manufacturers.

In contrast, LED street lamp, the various manufacturers of the product specifications are not the same, the late replacement or repair products need to get back to the same manufacturer, indirectly, LED street lamp into a monopoly by the company's binding products. The product is not standard is the biggest bottleneck of the road ahead of the LED street lamp, the standardization of the standard has become an urgent need for the development of the industry. If the LED street lights to solve the above problems, the high-pressure sodium lamp can fade out the market. According to the theory, the LED on the road side of the promotion should be faster than the indoor lighting, but because it has a certain inertia of the promotion of road lighting in the market, and more standardized, its popularity is unable to effect. "But I believe that one day, the street lights will be the spring of LED. "Liu Muqing to" new century LED "the reporter expresses to the hope of LED street lamp.