Why LED street lights will quickly replace traditional street lights

2020-12-08

With the improvement of LED luminous efficiency and lifespan, coupled with the advantages of power saving, energy saving and environmental protection, the feasibility of LED to replace traditional lighting in the application of street lamps is greatly improved. Compared with traditional lighting sources, LEDs provide better lighting capabilities in terms of light source dispersion and energy saving, and at the same time change the general industry's perception of the use of high-quality light sources, and are also applied to streets and general roads. Current streets use high-pressure sodium lamps for lighting, and some use metal halide, low-pressure sodium lamps or other types for lighting. The use of high-pressure sodium lamps is due to their longer service life and higher efficiency compared to other traditional lamps, but they are less selective in the provision of colors. LEDs have a longer service life and lower maintenance than high-pressure sodium lamps Cost, a variety of colors available, low energy consumption and cost savings. However, the initial cost of using LEDs is still higher than that of commonly used light sources.
Professional LED street lamp manufacturers introduced that under the rapid growth of LED technology and continuous improvement of product characteristics, LED street lamp demonstration plans were launched in various countries. Through the evaluation and analysis of LED street lamp demonstration plans, it can provide governments and LED manufacturers in the future street lamp market. Put it into application as a demonstration plan.
The LED street lamp demonstration plan is to replace the original 121 watt high pressure sodium lamp with 15 78 watt LED lights on 3 roads. For comparison and comparison, a brand new high pressure sodium lamp is installed on the east side of a road and LED on the west side. Street lights; LED Street Lights are installed on one road, and new high-pressure sodium lights are installed on another adjacent road. All lamps are installed 28.5 feet above the road, with a pole distance of 110, 120 or 160 feet.
The test results found that the average power used by each LED street lamp is 77.7 watts, which saves about 35% of the power compared to the average power of the high pressure sodium lamp HPS of 121 watts. Based on the 4100 hours of operation time per year, it is expected to save a year. Under 178 kilowatt hours.

According to the measurement results, it can be known that, on the whole, the illuminance of the LED lamp is the same level as that of the high pressure sodium lamp or higher than that of the higher pressure sodium lamp. In addition, because the LED lamp directly measures the illuminance directly under the fixing device and is slightly darker than the high-pressure sodium lamp, the uniformity of the LED lamp is relatively good. In low light conditions, compared to high-pressure sodium lamps, the illuminance of LED street lights can be maintained at the same illuminance level and increased.

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