Intelligent street lights fully consider the actual situation of urban road lighting and use microcontroller control technology to dynamically and intelligently manage the illumination of street lights, achieving humanization of street lights. Due to the extremely fast transient response characteristic of LED street lights that other street lights do not have, it is easy to use KHZ level pulse width modulation (PWM) method to adjust the duty cycle of LED street lights on and off on the circuit. For example, if it turns on for 0.5ms within 1ms and turns off for 0.5ms, its brightness will be 50% of the full brightness, which adjusts the overall brightness of the lamp. There will be no flickering phenomenon when working at such a high frequency. By setting the lighting fixtures, the street lights can maintain strong illumination during busy hours, and automatically dim in the late night when there are few people and cars, allowing the street lights to maintain low illumination. It is also possible to manually set the illuminance level and set the duration ratio of strong and weak illuminance based on different levels of urban prosperity, lighting conditions, and traffic flow through an internal programmer. In the future, the streetlights can execute the program periodically according to the new settings. This has achieved personalized lighting for local roads.

In addition, LED street light sources (LEDs) have good single directionality and extremely high light extraction rates. However, traditional gas street light sources emit light from all directions and rely on reflectors to converge into a single directional light, resulting in significant losses and significantly lower light extraction rates compared to LED street lights. Therefore, traditional street lights are significantly inferior to LED street lights in terms of their actual lighting effect on the road surface. The predictability benefit analysis compares the economic benefits of laying 700 street lights over 10 kilometers. The following economic benefit analysis is an ideal analysis. In fact, it can be seen from items 15 and 16 of the technical parameter table that the advantages of LED street lights far exceed the ideal analysis.