[Source: "High-tech LED-technology and application" May issue Long Zonghui] "At present, LED street lights are still part of the pilot stage, and the National Twelfth Five-Year Plan has not explicitly proposed the complete elimination of existing sodium lamps to LED street lights.
As a new type of product, when the LED street lamp standard has not been standardized and the product quality is uneven, the advantages in terms of product energy saving, product life, replacement and maintenance are not obvious. On the contrary, disadvantages in terms of cost and failure rate. However, it seriously affects the large-scale use of LED street lights. Mr. Wang Xiaoming, Director of the Engineering Construction Department of Shanghai Street Light Management Center, said.
From the point of view of use, sodium lamps are still the biggest competitor of LED street lamps. Some manufacturers in the publicity to vigorously exaggerate the energy-saving effect of L ED street lights, in the direction is open to question. If the sodium lamp technology is used as a reference system to inspect the LED street light, the price difference of the product can be offset by energy saving. As a result, it can be imagined that the price of the sodium lamp is still very high.
Although the road lighting standards vary from country to country, in China alone, road lighting in some places, including some roads in some big cities, sodium lamps as road lighting, in actual use, the road lighting itself is seriously exceeded, if these roads are illuminated The over-standard power is reduced, and the design standard value can also meet the energy-saving effect promoted by LED street lamps, and the cost of energy-saving renovation is lower.
LED street light quality restricts its large-scale use
"The most direct response of LED street light quality is in the maintenance rate. At present, LED street lights mainly adopt the method of bidding. Compared with the cost of sodium lamp, LED street lamp manufacturers only have to push down the price in order to win the bid. To some extent, Said to be unfavorable to the development of the industry." Wang Xiaoming said.
It is understood that the quality assessment of national grass-level street lamps is mainly aimed at indicators such as the perfect rate of street lighting equipment and the lighting rate of road lighting. In the case that the LED street lamp technical standard has not yet been introduced, the quality of the original LED street lamp is difficult to control, and the maintenance worker always stays in the sodium lamp in terms of technology, and the maintenance of the LED street lamp is relatively unfamiliar. If it is handed over to the manufacturer for repair, it will be difficult to compare with the sodium lamp in terms of time and cost. There is a problem with the sodium lamp. After years of experience, the worker can judge the damaged part, repair it with partial replacement, and the maintenance cost is low. However, many LED street lights have their functions integrated. Even if it is judged that the drive is a problem, it is not easy to replace the drive components at the site.
In general, LED light sources are theoretically not easily damaged and can last up to 50,000 to 100,000 hours. However, there are many manufacturers of LED street lamps, with different product designs and various types of appearances. The drivers and chips belong to different manufacturers. The performance after packaging cannot reach the optimal combination of components. On the contrary, some basic requirements such as minimum water resistance are very good. Hard to guarantee. As part of the municipal municipal construction, street lamps are non-profit public welfare facilities. The people see that the street lights are not bright, and they will not pay special attention to the economic effects of energy saving and energy saving. Therefore, the safety and reliability of street lighting facilities are more important for street lighting management departments. Concerned, this is also the main reason why the street lamp management department has generally only used LED street lamps as a small-scale pilot so far.
For more information, please refer to the May issue of "High- tech LED- Technology and Applications" magazine.
As a new type of product, when the LED street lamp standard has not been standardized and the product quality is uneven, the advantages in terms of product energy saving, product life, replacement and maintenance are not obvious. On the contrary, disadvantages in terms of cost and failure rate. However, it seriously affects the large-scale use of LED street lights. Mr. Wang Xiaoming, Director of the Engineering Construction Department of Shanghai Street Light Management Center, said.
From the point of view of use, sodium lamps are still the biggest competitor of LED street lamps. Some manufacturers in the publicity to vigorously exaggerate the energy-saving effect of L ED street lights, in the direction is open to question. If the sodium lamp technology is used as a reference system to inspect the LED street light, the price difference of the product can be offset by energy saving. As a result, it can be imagined that the price of the sodium lamp is still very high.
Although the road lighting standards vary from country to country, in China alone, road lighting in some places, including some roads in some big cities, sodium lamps as road lighting, in actual use, the road lighting itself is seriously exceeded, if these roads are illuminated The over-standard power is reduced, and the design standard value can also meet the energy-saving effect promoted by LED street lamps, and the cost of energy-saving renovation is lower.
LED street light quality restricts its large-scale use
"The most direct response of LED street light quality is in the maintenance rate. At present, LED street lights mainly adopt the method of bidding. Compared with the cost of sodium lamp, LED street lamp manufacturers only have to push down the price in order to win the bid. To some extent, Said to be unfavorable to the development of the industry." Wang Xiaoming said.
It is understood that the quality assessment of national grass-level street lamps is mainly aimed at indicators such as the perfect rate of street lighting equipment and the lighting rate of road lighting. In the case that the LED street lamp technical standard has not yet been introduced, the quality of the original LED street lamp is difficult to control, and the maintenance worker always stays in the sodium lamp in terms of technology, and the maintenance of the LED street lamp is relatively unfamiliar. If it is handed over to the manufacturer for repair, it will be difficult to compare with the sodium lamp in terms of time and cost. There is a problem with the sodium lamp. After years of experience, the worker can judge the damaged part, repair it with partial replacement, and the maintenance cost is low. However, many LED street lights have their functions integrated. Even if it is judged that the drive is a problem, it is not easy to replace the drive components at the site.
In general, LED light sources are theoretically not easily damaged and can last up to 50,000 to 100,000 hours. However, there are many manufacturers of LED street lamps, with different product designs and various types of appearances. The drivers and chips belong to different manufacturers. The performance after packaging cannot reach the optimal combination of components. On the contrary, some basic requirements such as minimum water resistance are very good. Hard to guarantee. As part of the municipal municipal construction, street lamps are non-profit public welfare facilities. The people see that the street lights are not bright, and they will not pay special attention to the economic effects of energy saving and energy saving. Therefore, the safety and reliability of street lighting facilities are more important for street lighting management departments. Concerned, this is also the main reason why the street lamp management department has generally only used LED street lamps as a small-scale pilot so far.
For more information, please refer to the May issue of "High- tech LED- Technology and Applications" magazine.
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