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Representative Committee Voice: Solar LED Street Light is a typical green light source
According to Xu Huhong, the normal service life of LED street lamps is more than 50,000 hours, which is much longer than ordinary energy-saving lamps. It can reduce the cost and manpower of maintenance of street lamps, and its working voltage is low, energy consumption is low, energy saving effect and no radiation, Its waste can also be recycled, which is a typical green lighting source. At present, research on high-brightness LED devices is changing with each passing day. Solar LED streetlights that use solar energy as a renewable energy source and electronic LED devices as a light source are the perfect combination of renewable resources and green lighting sources.
Xu Playhong suggested that the city should promote the application of solar LED street lights as an important task for energy conservation and emission reduction, and should have short-term, medium-term and long-term development plans and supporting financial support; Plan to implement the pilot project of solar LED streetlight project on roads or public places, and grant special funds for the project; to provide policy support to relevant enterprises, we can refer to other provinces and cities to formulate relevant enterprises of the city and newly established related enterprises. Preferential policies; give special benefits to the project and introduce talents to the home.
Liu Jincheng believes that the promotion of solar LED street lights is a very valuable thing, but the current air pollution will lead to solar panel pollution, resulting in low efficiency of solar power and electricity use. It is recommended to improve the relevant technology. Large-scale promotion.
Application case: Pilot installation of 3 roads in Zhongkai High-tech Zone
The person in charge of the Zhongkai High-tech Zone Technology Innovation Center told the reporter that Zhongkai High-tech Zone has piloted the solar LED streetlight project on three roads including Huifeng 6th Road. After nearly one year of practice, the current indicators have passed the acceptance and can be saved within two years. The electricity bill will recover the investment cost. According to reports, at present, every solar LED street lamp is about 5,000 yuan more expensive than ordinary street lamps, but even if it is continuously rainy for 5 to 7 days, the lamp can still reach the brightness.
Department response: China has no product-related quality standards
Energy saving and emission reduction is a trend. Xu Junping, deputy director and senior engineer of the Municipal Urban Lighting Management Office, believes that mature products and equipment can be promoted on a large scale. At present, China has not yet introduced relevant quality standards for solar LED streetlight products. Therefore, it is difficult to operate first in the procurement process. Secondly, The current price of the product is high, and it must be considered in combination with its price/performance ratio if it is to be promoted. 
LCD is a substance between solid and liquid. It can't emit light by itself, so it needs additional light source. Therefore, the number of lamps is related to the brightness of the Liquid Crystal Display. The earliest liquid crystal displays had only two upper and lower tubes, the lowest of the popular type was four lamps, and the high-end one was six lamps. The four-lamp design is divided into three types of placement: one is that there is a lamp on each of the four sides, but the disadvantage is that there will be dark shadows in the middle. The solution is to arrange the four lamps from top to bottom. The last one is the "U"-shaped placement form, which is actually two lamp tubes produced by two lamps in disguise. The six-lamp design actually uses three lamps. The manufacturer bends all three lamps into a "U" shape, and then places them in parallel to achieve the effect of six lamps.
Tip: Brightness is also a more important indicator. The brighter the LCD, the brighter the LCD, it will stand out from a row of LCD walls. The highlight technology we often see in CRT (ViewSonic is called highlight, Philips is called display Bright, BenQ is called Rui Cai) is to increase the current of the shadow mask tube to bombard the phosphor to produce a brighter effect. Such a technology is generally traded at the expense of image quality and the life of the display. All use this The products of this kind of technology are all bright in the default state, you always have to press a button to implement, press 3X bright to play the game; press again to turn to 5X bright to watch the video disc, a closer look is blurred, you need to watch The text has to be honestly returned to the normal text mode. This design actually prevents you from frequently highlighting. The principle of LCD display brightness is different from that of CRT. They are realized by the brightness of the backlight tube behind the panel. Therefore, the lamp has to be designed more so that the light will be uniform. In the early days when selling LCDs, it was a great thing to tell others that there were three LCDs. But at that time, Chi Mei CRV came up with a six-lamp technology. In fact, the three tubes were bent into a "U" shape. The so-called six; such a six-lamp design, plus the strong luminescence of the lamp itself, the panel is very bright, such a representative work is represented by VA712 in ViewSonic; but all bright panels will have a fatal injury , The screen will leak light, this term is rarely mentioned by ordinary people, the editor personally thinks it is very important, light leakage means that under a completely black screen, the liquid crystal is not black, but whitish and gray. Therefore, a good LCD should not emphasize brightness blindly, but more emphasis on contrast. ViewSonic's VP and VG series are products that do not emphasize brightness but contrast!