LED street lamp performance is not stable energy saving does not necessarily focus on LED

At present in the domestic street lamp system LED lamp is very high: Shanghai to introduce 20 thousand, Changzhou to introduce 15 thousand ~ 20 thousand. Propaganda said LED lamp purchase costs, although higher than ordinary lamps, but can save money.

PHILPS lighting held in January 8th "harmonious city in Nanjing, and the future" seminar invited Nanjing city management office staff, architects designers and other city landscape designers and planners, and PHILPS lighting together to explore how to build the harmonious relationship between people and the city lights, between the three, proposed to create more attractive city environment. Application of energy saving lighting in urban construction.

However, in January 8th the seminar, Nanjing City streetlights Management Office Deputy Chief Engineer Liu Leishi said: 08 years of Nanjing began in August 6 manufacturers of different LED lamps are installed in the west side of the city of Taishan Vanke bright way to do the test results, not only the various light performance differences, but also with a lamp in different periods also different performance. These 6 lights power ranging from 120W-168W, some of the power 168W lamp brightness is not as good as 120W lights. Even more strange is that after a period of time, two brightness rise, 4 brightness decline, life span is also different.

In addition, Liu Leishi pointed out: the current LED lamp products there is no uniform standard to production, there is no way for the road maintenance; to do the test lamp manufacturers to provide the product upgrading and very fast, there is actually a few months out of the original product test; and the normal use of HPS lamp is at least periodic 5-8, so the existing street lamp personnel can quickly to determine and maintain the high-pressure sodium street lamp.

Since the performance of the LED lamp is not stable, then how to achieve energy saving Nanjing street lighting system, in this regard, Liu Leishi said that the traditional street lamps can be used to reduce voltage and power down and other ways to achieve energy saving. Nanjing this year all new street lamps will be used to change the power of the ballast, turn on the lights 6 hours after the automatic power down: from 400W to 250W, down from 250W to 150W, down from 150W to 100W. Longpan road has adopted automatic voltage drop of the street, the "new projects this year will be reduced using all this power facilities, and about more than 2 thousand and 600 will transform the old lamp lamp. "

Low voltage, power is small, will not affect the lighting effect, with the naked eye if you do not see the power of the moment, it is not a feeling. Liu Leishi said that the lighting brightness control has a lower limit, to ensure the lighting effect.

At present, including warm white, reducing power and a number of advanced energy-saving lighting technology has been in Nanjing Ring Road, Xu Zhuang Software Park pilot, the old district, no street lamp will be as a new area project together with transformation. According to Liu, Nanjing ring road of the new "warm white road lighting system should be a system model of road lighting +HID ceramic metal halide lamp electronic ballast of the combination, can improve the road lighting environment for people to travel at night to bring more sense of security and comfort, especially suitable for commercial street, square of color index requirements of high places. Therefore, Liu is currently on the market for the promotion of LED street lamps reserved attitude!

China Lighting Association vice chairman, China Institute of lighting outdoor lighting Specialized Committee Zhao Jianping also at the seminar report lists a large number of high pressure sodium lamp and the LED lamp to do data comparison, the results show that the LED lamp is not the most ideal products for road lighting. Moreover, the current used to do street lamp LED, in order to improve the effectiveness of the light is the color temperature in the 8000K LED, the color temperature is obviously too high. Nanjing Ring Road on the road of the new "warm white light road lighting system", its color temperature is 2800K, the color temperature in the road is ideal. High intensity high color temperature, low illumination need low temperature; at present, the new national standard of road lighting in the fast lane on the road lighting requirements are as long as 20~30LX, color index requirements are not so high; but in the Plaza, commercial street, the color index is very important, and high pressure sodium lamp in this respect it is obviously low, so they recommend COSMO products, is also the Nanjing ring road. The "warm white road lighting system".

In addition, square carpet (all the lights arranged in the underground lamp glass, like Zhang Ditan, Nuan Baiguang (overall), white light than ordinary but feel some clear bright colors) and a number of new city lights at the seminar debut.