LED used in street lamps have innate advantage in purchasing link need to pay attention to

For the LED used in street lamp has inherent advantages, its advantage lies in:. 1, LED as a point source, if the design is reasonable, to a large extent can directly solve the traditional spherical light source must rely on light emission to solve the problem of quadratic took the light and the light loss. 2, light

for the LED used in street lamp has inherent advantages, its advantage lies in:. 1, LED as a point source, if the design is reasonable, to a large extent can directly solve the traditional spherical light source must rely on light emission to solve the problem of quadratic took the light and the light loss. 2, light irradiation uniformity of the controllable, theoretically can be done entirely uniform within the target area, it can also avoid the traditional light source waste 'lights under the' phenomenon of light. 3, color WenKeXuan, such applications in different occasions, and improve efficiency, an important way to reduce costs. 4, is a large space technology progress. With the continuous consumption of energy and resources shortage, LED street light, the greenhouse effect has become increasingly significant harm to human beings, the atmospheric environment on the earth's pollution is more and more serious, international calls for saving energy and reducing consumption of more and more high, the saving energy to become a national priority, as early as 1996 in China officially launched the green lighting project, outdoor lighting engineering is put forward to save resources, prevent pollution, for the benefit of future generations, over the years through the joint efforts of people from all walks of life, as the fourth generation of light source semiconductor ( 领导) Lighting products have a flying leap development, street lamps manufacturer made remarkable achievements in the field of energy saving. Outdoor lighting in China accounts for about 30% of the whole lighting electricity consumption, production and living with people closely related to the LED street light as an important application of outdoor lighting. Street lamps in the form of each different, but the most common, also is the most practical function is the lighting, so the general set up along the road lights are white, the earlier design may be orange, this may be incandescent lamp, incandescent lamp is a lamp to earlier, there is a piece of tungsten wire, the current through the tungsten wire electric energy into light energy and heat energy, but we use street lamp mainly is the use of light energy, thermal energy is a kind of loss, in the later invention LED lights is solved the problem, it is a cold light lamp, as the name implies, cold light, no heat production, has made full use of energy, cold light lamp has a benefit is luminous intensity is large, bright. Is more suitable for use. Street lamp besides the function of the lighting and decoration beautification the purpose of, so all shapes all sorts of color of lights, a lot is the modelling of flowers, and small animals, as well as the other, both chic modelling, some typical street lamp manufacturer of primitive simplicity, lively and lovely. Procurement staff in purchasing link need to pay attention to the following questions:. Detection: when buying first is droop test report, this is a very important link, the bidding when companies will provide different unit droop test report, some companies themselves provide self-inspection, there are some third party testing, although here the test report of test results is good, the actual real droop disparity, reason is known, so how to course, the real thing? Test report is first semiconductor assigns the organization approved by the alliance, such as electric light source quality supervision and inspection center in Beijing, Shanghai electric light source quality supervision and inspection center, the semiconductor thirteen, etc. , from the light of these unit test report failure have credibility, road lighting lamps used high power, the heat generated by the big, light failure tests illustrate two problems: qualified droop, power supply, if a street lamp in the lab have not close, on the road also can ensure the quality? Street lamp structure: the road lighting failure inspection this structure is a problem, this problem is seldom concerned in the industry, street lamps factory which is in the street lamp light failure was caused when the actual use one of the main reasons. As everybody knows, the haze area is so big, it is not only physical harm to people, also caused the right light failure, especially in the northern region, dust, fog, in outdoor use after a short period of time, the whole street lamp surface covered with dust, and its heat dissipation effect, this is also the LED street lights are not all know that one of the main culprits. According to this kind of situation, on the design of lamps and lanterns must connect fully, is exponentially increase the cooling area, because no street lamp management department will clean the radiator on time, can only rely on rain wash in the long-term use, area increase would be standing after effective heat dissipation area caused by pollution reduction. Heat: road lighting failure have barrel effect, also not line, there is a short board droop bothering you so many years, the problem here is that you do lamps and lanterns of the radiator can solve droop, no, we start to talk about in the past use low-power chips encapsulation shell type, but not a high-power chips, said chip power heat scattered not to go out, not like that, COB packaging quantity of heat more concentrated, through the aluminum or copper stent can completely solve the problem of heat conduction.