Urban lighting engineering, also known as lighting engineering, refers to the use of lighting to reshape urban landscapes such as garden buildings, city squares, roads and bridges, in order to enhance the city's nighttime image, improve urban functions, and improve the living environment. Due to the fact that the lighting equipment used in urban lighting projects is often located in outdoor environments and lacks shading, higher reliability requirements are placed on the connectors used in the lighting equipment.

LED controller is a device used to control the brightness, color, flicker, and other effects of LED lights. By adjusting the current, voltage, or PWM signal, the LED controller can make the light array display specific text or patterns, achieving rich visual effects. After inserting the SD card into the controller, the LED controller can also read more complex display schemes inside the card, allowing for more combinations and patterns of light transformation, meeting the application needs of large-scale lighting projects in the market.

With the implementation and promotion of the national "hundred cities and thousands of screens" ultra-high definition video project, LED large screen has become the mainstream media for urban outdoor commercial advertising and public information release. The ultra-high definition large screen arranged in important business districts, large comprehensive transportation hubs, network red landmarks, cultural venues and other places has its shocking visual impact, which can bring immersive sensory experience outdoors and help to comprehensively upgrade the quality of urban commercial life.