Traffic signal lights are the basic language of road traffic, which can increase road traffic management, improve road use efficiency, and provide important guarantees for traffic safety. Traffic signal lights adjust the right of way of traffic flow in different directions through the separation of time and space, and can guide vehicles and pedestrians to pass safely and orderly. However, due to the wide variety of traffic lights, many of my friends may not know much about its types. In response to this phenomenon, let Shuangming Electronics introduce the types of traffic lights.
　　Types of traffic lights:
　　1. Shell material: According to the different shell materials, it can be divided into two kinds of materials: metal and non-metal.
　　2. Light-emitting unit surface size: According to the light-transmitting surface size of the light-emitting unit, it can be divided into traffic signal lights of φ200mm, φ300mm, and φ400mm.
　　3. Operation mode: According to the operation mode, it can be divided into timing signal light, induction signal light and adjustment signal light.
　　4. Light source: According to the light source, it is divided into incandescent lamps, low-voltage halogen multi-tungsten lamps, light-emitting diodes and other light sources that meet relevant standards.
　　5. Function: According to the function, it can be divided into direction signals, motorized signals, non-motorized vehicle signals, pedestrian crossing signals, countdown timer signals, U-turn signals, integrated pedestrian signals, integrated motorized signals, and solar mobile signals.