Are traditional high pressure sodium light better than LED street light? Let's find out
In the field of road lighting, traditional high-pressure sodium light have been gradually replaced by LED street light. Especially for new roads, either LED street light or solar street light are used. Basically, all street light use street light as lighting light.
Types of street lights
1. According to the height of street lights: high pole lights, middle pole lights, road lights, garden lights, lawn lights, buried lights;
2. According to the material of the street light pole: hot-dip galvanized iron street light, hot-dip galvanized steel street light and stainless steel street light;
3. According to the street light source: sodium light street light, LED street light, energy-saving street light, new Somin xenon street light.
4. According to the shape: Chinese light, antique light, landscape light, single-arm street light, and double-arm street light.
5. According to the power supply mode: city circuit lights, solar street lights, wind-solar hybrid street lights
Compared with traditional high pressure sodium light, what are the significant advantages of LED street light?
1. Long life advantage:
2. Energy efficiency advantages:
3. Advantages of low light attenuation:
The light decay of the street light is small, less than 3% in one year, and it still meets the lighting requirements for road use in the service year, while the high-pressure sodium light has a large decay, which has dropped by more than 30% in about a year, so the design of the power of the street light can be used. lower than high pressure sodium light.
4. Color rendering advantages:
5. Advantages of easy light distribution:
The street light can control the light spot easily and conveniently through secondary optics, with low glare and high utilization rate; while the light spot of the high-pressure sodium light is of an irregular diffusion type, the brightness difference between the center and the edge of the spot is large, and the effective utilization rate of light is low. Light pollution is serious.
6. Advantages of easy control:
The traditional sodium light has a long start-up time and cannot realize brightness adjustment, while the street light can be started instantaneously, the brightness can be adjusted, and the energy-saving device can be automatically controlled, which can achieve the maximum possible power reduction under the condition of meeting the lighting requirements of different periods, and further save electricity.
7. Environmental advantages:
The high-pressure sodium light source itself is fragile, and the light source contains mercury and other harmful substances, which is easy to cause secondary pollution to the environment; while the street light is lead-free, mercury-free, infrared-free, ultraviolet-free, and environmentally friendly.
8. Advantages of high power factor:
Combined with what I just said, compared with traditional high-pressure sodium light, high-power street light have obvious advantages in all aspects, especially energy saving, with an energy saving rate of more than 60%; maintenance costs have dropped significantly, and they are green and environmentally friendly, making them the best choice for road lighting.
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