Road traffic lights are a category of traffic safety products. They are an important tool to strengthen road traffic management, reduce traffic accidents, increase road use efficiency, and improve traffic conditions. It is suitable for intersections such as crosses and T-shaped intersections. It is controlled by a road traffic signal controller to guide vehicles and pedestrians to pass in a safe and orderly manner.
LED (Light Emitting Diode) is a new type of light source developed and produced in recent years. It has low power consumption (current only 10-20mA), high brightness (light intensity up to tens of thousands of mcd), and small size (the smallest diameter can reach 3mm) , Light weight (a light-emitting diode weighs only a few tenths of a gram), long life (average life of 100,000 hours) and other advantages. It has gradually replaced incandescent lamps and low-voltage tungsten halogen lamps to make road traffic signal lights.