The application of LED street lights with special light shape design in street lamps can offset the luminous Angle of the lamps and improve the utilization rate of roadside lighting; According to the rectangle's aspect ratio can produce a 2:1 light spot, so that there will be no shadow between the adjacent light spots, can form a bright and uniform light band on the road surface, so it is more in line with the lighting design of the current traffic road, do not need to improve the height of the lamp pole can meet the wide enough irradiation range, but also improve the lighting efficiency of the lamp. Reduce the lighting power density of the road, so as to truly achieve energy saving and green environmental protection with high-power LED street lights used as road lighting, the following for everyone to share LED landscape street lights compared with traditional high-pressure sodium lamps have unparalleled advantages:

1. The luminous mechanism is different, because the LED street lamp is a semiconductor device, its effective life can reach 50,000 hours (that is, after 50,000 hours, the light decay is less than 30%), much higher than sodium lamps and gold halide lamps (their life is about 1000-15000 hours).

2, because the LED street lamp is a semiconductor material, no filament and other additional materials, so its shock resistance is good.

3. The color rendering index of LED street light source can reach more than 80, which is closer to natural light, and the human eye is easier to distinguish things in this case, which is conducive to driving safety; The color rendering index of high-pressure sodium lamps is only 20-30.

4. Traditional gas discharge lamps such as high-pressure sodium lamps have a preheating process when starting, which wastes energy and is not conducive to intelligent control; Since there is an essential difference in the light source, there is no problem of "start time", the power can work normally immediately, and it is very convenient to realize intelligent energy-saving control.

5. Because the traditional street light source uses the mechanism of mercury vapor to emit light, the treatment of waste light source is also a problem that needs to be solved in the world at present, and the luminous mechanism of the traditional light source determines that it will emit ultraviolet rays harmful to the human body. LED street light source is solid state lighting, no harmful substances such as mercury and other elements, will not emit ultraviolet light, therefore, is an environmentally friendly light source.

6. In the optical system, the traditional street light source is omnidirectional luminescence, half of the light needs to be reflected by the reflector, and the reflector is to absorb part of the light, so the light loss is relatively large. Since LED street lights are unidirectional, the utilization rate of light is higher than that of traditional street lights.

7. The light distribution curve of traditional street lamps is determined by the reflector, so it has certain limitations, and the LED street light source is a distributed light source, which can be designed through the design of various electric light sources, so that the lamp light source is an ideal bat wing shape, and the road spot is rectangular through reasonable control of the light distribution, and the high illuminance uniformity is obtained within the effective irradiation range.

8. More perfect automatic control (optional) : Different brightness can be set according to the needs of different time periods to improve the energy-saving effect. If it is 200W when it is bright at 7 p.m., when there is less people at 12 a.m., the brightness is automatically adjusted to 100W, which can also save 60W.

In the current lighting design, the lamp distance is generally 3 times the height of the lamp, and the lamp height is generally equivalent to the width of the road, according to the geometric triangle relationship can be calculated that the light distribution Angle of the lighting fixture should be about 140 degrees in the direction of C0/180, about 80 degrees in the direction of C90/270 in the past 100 years, the lighting source has experienced three important stages: Incandescent lamps, fluorescent lamps, high-intensity gas discharge lamps (HID), and LED street light sources with broad development prospects in the lighting industry are known as the fourth generation light sources. LED street light as an emerging light source, with long life, high luminous efficiency, low power consumption, short startup time, high color rendering index, low operating temperature, solid structure, not afraid of vibration, good directivity, low operating voltage, no UV radiation, light weight and other significant characteristics, is the world's most potential for development of a new generation of light sources. And the LED street light source can achieve mercury-free production, which is also of great significance for environmental protection. Solid-state lighting with semiconductor LED street lights as a light source will gradually replace traditional lighting and enter a variety of applications.

At present, lighting consumption accounts for about 20% of the entire power consumption, greatly reducing lighting electricity is an important way to save energy. LED street lights are attracting the world's attention for their employment advantages. In Japan, 100% of incandescent lamps are replaced with LED street lights, which can reduce the power generation of 1-2 nuclear power plants and save more than 1 billion liters of crude oil consumption per year. In Taiwan, 25% of incandescent lamps and 100% fluorescent lamps have been replaced by LED street lamps, which can save 11 billion KWH of electricity per year. LED street lights will also form a huge industry market of 50 billion US dollars.