Traffic Signal Lights are an essential component of modern road traffic systems. Their primary function is to regulate the movement of vehicles and pedestrians and to coordinate traffic flow from different directions, thereby reducing traffic conflicts, lowering the likelihood of accidents, and improving overall road efficiency. By providing clear and intuitive visual signals, traffic signal lights play a critical role in maintaining order at intersections and enhancing the safety and efficiency of urban transportation networks.

In terms of structural and optical design, traffic signal lights typically use high-brightness LED light sources, which offer fast response times, stable illumination, and relatively low energy consumption. These characteristics ensure good visibility under various weather and lighting conditions. The housing is commonly manufactured through one-piece aluminum die-casting or engineering plastic injection molding, resulting in a compact structure with reliable strength that enhances impact resistance and operational stability. The signal display sizes include 300 mm, 400 mm, as well as square formats such as 300 mm × 300 mm and 400 mm × 400 mm, allowing for flexible selection according to road classifications and installation environments to meet diverse application requirements.

Regarding installation and configuration, traffic signal lights provide a high degree of flexibility. The signal units can be modularly combined based on intersection layouts and support both vertical and horizontal mounting methods, making them suitable for various road intersections, pedestrian crossings, and dedicated traffic lanes. This rational structural design simplifies installation while also facilitating subsequent adjustment and maintenance. Through proper configuration and stable long-term operation, traffic signal lights are able to maintain clear and consistent signaling performance, providing reliable support for effective road traffic management.