Best LED Street Light Factory Price - Ming Feng
Ming Feng lighting factory has been involved LED street light for more than 10 years, a bunch of talent engineers concentrate on the technology of LED light, the SLIM family is a perfect babe from R&D team, MF would like to contribute more to LED industrial. As to the LED street light, there are a lot of advantages comparing with the conventional lamps,
The advantages of LED lamps over traditional lamps are as follows:
1. High photoelectric conversion rate: under the same electric energy conditions, the brightness of LED lamps is many times higher than that of ordinary lamps.
2. Energy saving and environmental protection: the lighting area is the same, and the power consumption of LED is many times less than that of ordinary lamps. In short, it is to save electricity and pay less electricity charges.
3. Strong fall resistance: as far as a single LED itself is concerned, it will not be damaged if it falls at a height of 2m, which can not be done by ordinary lamps.
4. Not easy to break: this feature is relative. Only in a general sense, there are few bad situations in the use of LED. LED lamps with poor quality are easy to break.
5. Small size: light. An LED lamp is as small as a few millimeters and as large as a few centimeters, so it is more convenient for transportation and storage.
6. Low temperature operation: LED lamp is a cold light source, generally from the illuminant to the lampshade
Audited supplierThe difference between LED street lamps and conventional street lamps is that the LED light source adopts low-voltage DC power supply and high-efficiency white light synthesized by GaN based power blue LED and yellow. It has the unique advantages of high efficiency, safety, energy saving, environmental protection, long service life, fast response speed and high color rendering index. It can be widely used in roads. The outer cover can be made, with high temperature resistance up to 135 degrees and low temperature resistance up to - 45 degrees.
advantage
1. Its own characteristics - the unidirectionality of light, no light diffusion, to ensure the lighting efficiency.
2. LED street lamp has unique secondary optical design, which irradiates the light of LED street lamp to the required lighting area, further improves the lighting efficiency and achieves the purpose of energy saving.
3. The of LED has reached 180lm / W, and there is still much room for development. The theoretical value is 360lm / W. The luminous efficiency of high-pressure sodium lamp increases with the increase of power. Therefore, the overall luminous efficiency of LED street lamp is stronger than that of high-pressure sodium lamp（ The overall light efficiency is theoretical. In fact, the light efficiency of high-pressure sodium lamps above 250W is higher than that of LED lamps).
4. The light color rendering performance of LED street lamps is much higher than that of high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, while the color rendering index of LED street lamps reaches more than 75. From the perspective of visual psychology, the illumination of LED street lamps can be reduced by more than 20% on average compared with high-pressure sodium lamps,.
5. The light attenuation is small, less than 3% in one year, and still meets the road requirements after 10 years of use, while the high-pressure sodium lamp has decreased by more than 30% in about one year. Therefore, the design of LED street lamp in use power can be lower than that of high-pressure sodium lamp.
6. LED street lamps are equipped with automatic control energy-saving device, which can reduce power and save electric energy as much as possible when meeting the lighting requirements in different periods. It can realize humanized functions such as computer dimming, time-division control, light control, temperature control, automatic inspection and so on.
7. Long service life: it can be used for more than 50000 hours and provides three-year quality assurance. The disadvantage is that the service life of the power supply is not guaranteed.
8. High luminous efficiency: chips ≥ 100lm are adopted, which can save more than 75% energy compared with traditional high-pressure sodium lamps.
9. Easy installation: no need to bury cables, no need to rectifier, etc. directly connect the light source to the lamp pole or nest the light source into the original lamp shell.
10. Excellent heat dissipation control: the temperature is controlled below 45 degrees in summer, and passive heat dissipation is adopted, so the heat dissipation guarantee in summer is insufficient.
11. Reliable quality: all circuit power supplies adopt high-quality components, and each LED has separate overcurrent protection, so there is no need to worry about damage.
12. Uniform light color: no lens is added, and uniform light color is not sacrificed to improve brightness, so as to ensure uniform light color without aperture.
13. LED does not contain harmful metal mercury and will not cause harm to the environment when scrapped.
Based on the above principles, the energy-saving effect is remarkable, and the power can be saved by more than 60% instead of high-pressure sodium lamp.
Low maintenance cost: compared with traditional street lamps, the maintenance cost of LED street lamps is very low. After comparison, all the input costs can be recovered in less than 6 years.
Assuming that there are three sections of roads in a city with a length of 3km, 5km and 10km respectively, the total number of street lamps required for the laying of street lamps is 202, 334 and 668 respectively. The traditional street lamps are subject to the high-pressure sodium lamps with a power of 250W, and the LED street lamps are subject to the power of 50W.
The unit price of traditional street lamps is 1000 $ / lamp, and the unit price of LED street lamps is 3000 $ / lamp. The light source costs required for laying roads with three lengths of traditional street lamps are 202 * 1000 = 202000 $, 334 * 1000 = 334000 $, 668 * 1000 = 668000 $ respectively. The light source costs required for laying roads with three lengths of LED street lamps are 202 * 3000 = 606000 $, 334 * 3000 = 1.02 million $, 668 * 3000 = 2.04 million $ respectively.
Let's analyze the cost of laying cables for two light sources in three sections of roads. The cable load flow of traditional street lamp trunk line in 3km road is I = P / u = 202 * 250 / 220 = 230A. It requires copper core cable with a cross-sectional area of 60mm2, and its unit price is 120 $ / m, so the cable cost is 120 * 3000 = 360000 $, and the cable load flow of LED street lamp trunk line is L = P / u = 202 * 50 / 220 = 44a, It needs a copper core cable with a cross-sectional area of 1omm2, a copper core cable with a cross-section of 12mm2, the unit price is 12 $ / m, the cable cost is 12 * 300 = 36000 $, the cable load flow of the traditional street lamp trunk line of 5km road is I = P / u = 333 * 250 / 220 = 377a, it needs a copper core cable with a cross-section of 90mm2, the unit price is 180 $ / m, and the cable cost is 980 * 5000 = 900000 $, The cable load flow of LED street lamp trunk line is I = P / u = 333 * 50 / 220 = 73a, which requires copper core cable with cross section of 20mm2, the unit price is 25 $ / piece, and the cost is 25 * 5000 = 125000 $. The cable flow of traditional street lamp trunk line on 10km road is I = P / u = 666 * 250 / 220 = 680a, which requires copper core cable with cross section of 400m2, the unit price is 360 $ / m, and the cable cost is 360 * 10000 = 3.6 million $, The cable load flow of LED street lamp trunk line is I = P / u = 666 * 50220 = 146a. It requires a copper core cable with a cross section of 42mm2. The unit price is 60 $ / M and the cost is 600000 $.
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