What are the advantages of LED street lights over high pressure sodium lamps?

At present, the light sources of urban road lighting mainly include traditional high-pressure sodium lamps, fluorescent lamps, etc. Among them, high-pressure sodium lamps are the most used in road lighting due to their high luminous efficiency and strong fog penetration ability. Combined with the current design characteristics of road lighting in my country, the road lighting using high-pressure sodium lamps has the following shortcomings: (1) The lamps are directly illuminated on the ground, and the illuminance is extremely high, which can also reach 401x or more in some secondary roads, but obviously, this illuminance It belongs to excessive lighting, which causes a lot of waste of electric energy. At the same time, at the intersection of two adjacent lamps, the illuminance only reaches about 40% of the direct irradiation direction, which cannot effectively meet the lighting needs. (2) The reflector efficiency of the high-pressure sodium lamp is only about 50-60%, which means that in the lighting, nearly 30-40% of the light is irradiated inside the lamp, and the overall efficiency is only 60%. There are serious problems. waste phenomenon. (3) Theoretically, the lifespan of high-pressure sodium lamps can reach 15,000 hours, but due to the influence of grid voltage fluctuations and operating environment, its service life is far from reaching the theoretical lifespan, and the annual damage rate of lamps exceeds 60%. Compared with traditional high pressure sodium lamps, LED solar street light has the following advantages: (1) As a semiconductor component, in theory, the effective service life of LED solar street light can reach 50,000 hours, and the 15,000 hours of higher pressure sodium lamps are much higher than . (2) Compared with high-pressure sodium lamps, the color rendering index of LED solar street light can reach more than 80, which is quite close to natural light. Under such light, the recognition function of human eyes can be effectively exerted, thereby ensuring road driving safety. (3) When the street light is turned on, the high-pressure sodium lamp needs a preheating process, and the light takes a certain time from dark to bright, which not only causes the waste of electric energy, but also affects the effective development of intelligent control. In contrast, LED solar street light can achieve the best illumination at the moment of opening, and there is no so-called start-up time, so it can achieve good intelligent energy-saving control. 4) From the perspective of the light-emitting mechanism, the high-pressure sodium lamp uses mercury vapor to emit light. After the light source is discarded, if it cannot be effectively treated, it will inevitably cause corresponding environmental pollution. LEDs, etc. use solid-state lighting, and there are no substances harmful to the human body. It is a green and environmentally friendly light source. (5) From the perspective of the optical system, the light source of the high-pressure sodium lamp belongs to omnidirectional light, and more than 50% of the light needs to be reflected by the reflector before it can reach the ground. During the reflection process, a part of the light will inevitably be lost, affecting its utilization rate. . LED solar street light belongs to one-way light, and the light can be directly irradiated, so the utilization rate is relatively high. (6) In the high-pressure sodium lamp, the light distribution curve needs to be determined by the reflector, so there are great limitations; in the LED solar street light, the distributed light source is used. The light source of the lamp is in an ideal state, the reasonable adjustment of the light distribution curve is realized, the distribution of light is controlled, and the illuminance is relatively uniform within the effective illumination range of the lamp. (7) At the same time, LED solar street light has a more complete automatic control system, which can adjust the brightness of the lamps according to different time periods and lighting conditions, which can play a good energy-saving effect. A certain brand of sodium lamp with a power of 400W and a certain brand of LED solar street light with a power of 160W were installed on 14 light poles of a main road in a city, and the road lighting test was carried out. The effect can fully meet the requirements of 'Urban Road Lighting Design StandardsComparison of comprehensive energy-saving effects between LED solar street light and high-pressure sodium lamps. solar street light,solar street light manufacturer,high pole light,high pole light manufacturer,street light,street light manufacturer,street light,street light manufacturer,led street light,led street light manufacturer,street light pole,street light pole manufacturer,landscape light,landscape light manufacturer , Magnolia lanterns, Magnolia lanterns manufacturers, minority street lights Yangzhou Global Solar Technology Development Co., Ltd. is a manufacturer engaged in the production of outdoor road lighting, the main products are city circuit lights, solar street lights, high pole lights, led street lights, all kinds of special-shaped Landscape lights, magnolia lights, Chinese lights, street lights with ethnic characteristics, etc., welcome to visit our factory and consult and discuss business cooperation
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