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Street lighting renovation, LED light source will replace the traditional high-pressure sodium lamp into a trend

Recently, the city road in Wenzhou City is undergoing road lighting renovation and upgrading. The LED light source on the taller level will replace the traditional high-pressure sodium lamp and become the illumination source for the citizens to travel at night.

In May of last year, the Municipal Administration Office began to try to install the proposed LED light source. After passing the test and inspection and meeting the requirements, it started in August last year, and the urban district plume lights were replaced by LED light sources.

It is understood that this urban street light source transformation is to take advantage of the high utilization rate of LED light source, long service life, light illumination, good color rendering, more energy saving and environmental protection.

In terms of light efficiency utilization, the traditional high-pressure sodium lamp is a light source that emits light in a full space, and the actual illumination is less in the direction of the road; and the LED lamp is a single-direction illumination of the light-emitting surface, the light flux loss is small, and the light source utilization rate is high. In energy conservation and environmental protection, traditional high-pressure light sources contain metallic mercury and metallic sodium (which become mercury vapor and sodium vapor after power-on), and subsequent waste disposal is environmentally polluting; while LED is a solid light source, without any gas, street lamps do not contain harmful Metallic mercury is safer, more environmentally friendly and non-polluting. In addition, in the color rendering performance, the high-pressure sodium lamp has a low color rendering index, poor color rendering, and poor color reproduction of the object itself, which is not conducive to judging the depth of the surrounding environment; the LED light source has a high color rendering index and good color rendering, which is good. The actual color of the ground restored object is closer to the natural light color. In the service life, the traditional high-pressure sodium lamp has a service life of 1 to 3 years, and the average life of the LED lamp is more than 5 years.

At present, Wenzhou City has completed the replacement of more than 30,000 street light sources. It is expected that nearly 40,000 LED street lights will be installed at the end of this year.

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