Street lamp: LED light source applications will be cautious

With the implementation of the Ten City million pilot work, many traditional lighting companies have entered the field of semiconductor lighting, industrial restructuring and upgrading of the curtain has been opened.

Since the "ten city lights" project, the 21 pilot city has 1 million 600 thousand or more LED lamps have demonstration applications, saving more than 164 million degrees, the city a total of more than 2 thousand enterprises of semiconductor lighting, the output value of about 75 billion 900 million yuan, the initial formation of industrial agglomeration.

Ningbo city is home to China's lighting industry, there are more than 4000 traditional lighting companies, currently nearly 1/3 enterprises have or plan to transition to the semiconductor lighting industry, some of the traditional lighting industry listed companies has also invested heavily in R & D and production into LED.

Street lamp: LED light source applications will be cautious

Polarization occurs

"Industry hot, cold market tremble", this is the greatest embarrassment of domestic LED lighting industry is currently facing the city.

The reason is not complicated, the "test" for nearly two years results so that every city must face a difficult choice: in accordance with the government's encouragement to choose domestic brands, but the vast majority of China LED lighting companies do not have the ability to produce high quality LED lamp; choose foreign brands can guarantee the quality, but more cost burden faced. The reporter visited the Zhongshan Street business, most will only LED light source as trial production, energy contracts such as "norm" also let the part of pure LED Street enterprises encounter 'collection difficult".

High investment costs

LED lamp has its shortcomings. LED lighting uniformity is low, the number of road mileage than the high-pressure sodium lamp also use up to about 20-30%, and the price should be higher than high pressure sodium lamp 3-4 times, the initial investment cost is much higher than that of high pressure sodium lamp, and the lamp number increased, while reducing maintenance cost and power consumption, but the overall cost is higher than that of high pressure sodium lamp.

LED lamp light source directivity is strong, visual effect glare will be slightly higher than that of high pressure sodium lamp. Although from the environment, LED lamp with high luminous efficiency, no mercury, sodium and harmful elements, will not cause pollution to the environment, is more in line with the green lighting products, has a good social effect, but the LED light source in road lighting applications due to the uniformity and no power source restrictions, to the technical level now LED street, not in the main road and other important sections of application, only suitable for low bar lighting in the city branch, such as small internal roads, because a large number of lights, inconvenient maintenance, the use of LED lamp can greatly reduce the amount of maintenance, and because of its high color, can a more comfortable visual environment for the district create. It is worth mentioning that, in the light of the current price calculation, LED's investment costs and operating costs are much higher than the sum of high-pressure sodium lamp.