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LED street lights
refer to semiconductor lighting lamps, which often use light-emitting diodes as the light source. They are solid-state cold light sources, featuring characteristics such as being environmentally friendly, low in energy consumption, high in luminous efficiency, and long lifespan. Street lights are a critical component of urban lighting.
Traditional street lights
typically use high-pressure sodium lamps, which have low luminous efficiency, leading to energy waste. Therefore, developing new efficient, energy-saving, long-lasting, high color rendering index, and environmentally friendly
street lights
is of significant importance for energy conservation in urban lighting. Currently, the market for
LED street lights
clearly shows advantages over traditional street lights:
1、
The inherent characteristic ofLED street lightsis the unidirectionality of light without diffusion, ensuring lighting efficiency.
2、
LED street lights feature a unique secondary optical design, directing light precisely to the required areas, further enhancing lighting efficiency aimed at energy conservation.
3、
The luminous efficiency of LED light sources has reached 90-110LM/W, with significant room for development, theoretically reaching 250lm/W. The luminous efficiency of high-pressure sodium lamps increases with power output; thus, overall lighting efficiency of LED street lights is superior to that of high-pressure sodium lamps.
;
4、The color rendering ability of LED street lights is much higher than that of high-pressure sodium lamps, with the latter’s color rendering index around 23, while LED street lights exceed 75. From a visual and psychological perspective, under the same brightness, the lighting intensity of LED street lights can be reduced by more than 20% compared to high-pressure sodium lamps (according to UK lighting standards).
5、
LED street lights exhibit low light decay, with less than 3% decay after one year of use, still meeting road illumination requirements after ten years, while high-pressure sodium lamps can experience more than 30% decay in about a year.
;
6、
LEDs are low-voltage devices. The driving voltage of individual LED components is safe voltage, and the power of individual LEDs in the product series is 1 watt, making it a safer power option compared to high-voltage sources, particularly suited for public spaces (e.g., street light illumination, industrial lighting, automotive lighting, residential lighting, etc.).
;
7、
Long lifespan: can exceed 50,000 hours of operation.
Currently,
LED lighting technology
is maturing, with the efficiency of high-power LED light sources exceeding 100LM/W, making energy-saving transformations of urban street lighting feasible. LED street lights, especially high-power LED street lights, are rapidly impacting the traditional street light market.
