What is the light distribution status of LED street lights?
Under the current market conditions, what is the status quo of LED street lights? What are the disadvantages of the current LED street light distribution method? Let's take a look at the relevant description of LED street lamp power distribution. LED street lamp manufacturers ED street lamps have much higher light color rendering than high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, while the color rendering index of LED street lamps is more than 75. From the perspective of visual psychology, it can reach the same brightness and the illuminance of LED street lamps is average. It can be reduced by more than 20% compared with high-pressure sodium lamps. Low maintenance cost of LED street lights: Compared with traditional street lights, the maintenance cost of LED street lights is extremely low. After comparison, all input costs can be recovered in less than 6 years. The LED street lamp has an automatic control energy-saving device, which can achieve the greatest possible reduction in power and energy saving under the condition of meeting the lighting requirements of different periods. It can realize computer dimming, time period control, light control, temperature control, automatic inspection and other humanized functions.
The current LED street lamps in the market have two light distribution forms. The first is to use the traditional road lamp housing, but in the lamp, a matrix LED is installed on an almost flat mounting surface (also a reflective surface). The second method is to concentrate multiple LEDs in a circular area (area diameter of 30~40mm) to make the light output density of this small area close to that of a high-intensity gas discharge lamp, and then use the lamp reflector to perform Light distribution. Among them, the light distribution quality of this type of LED street lamp designed by the first method is not very good, and the second method has the problem of poor heat dissipation, which in turn reduces the luminous efficiency of the LED street lamp and the service life. Little problem.
LED street lamps and road lamps must truly meet the illuminance and uniformity requirements of CJJ452006, CIE31 and CIE115 standards, and the three-time light distribution function should be included in the luminaire to achieve a better realization. The LED with a reflector and a reasonable beam output angle itself has a good primary light distribution function. In the luminaire, the installation position and emission direction of each LED street lamp can be designed according to the height of the street lamp and the width of the road surface, and a good secondary light distribution function can be realized. The reflector in this type of luminaire is only used as an auxiliary three-time light distribution method to ensure better road illumination uniformity.
The above is the relevant introduction and description of the current situation of LED street lights. If you have any questions, you are welcome to inquire. We will continue to update more relevant content for you. You can follow our website to learn more.
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