Nowadays, LED lights are the main lighting form for signal heads and have largely replaced traditional signal lights. This technology consumes very little electricity, yet today’s LEDs achieve top-notch traffic signal performance. LED signal heads are known for their bright and evenly illuminated lights. Even under unfavorable lighting conditions, road users can reliably see the lights and actually use them. The confusing phantom reflections that occur when the sun is very low have been eliminated.
Red, yellow, and green signal lights are generally installed in conspicuous positions at traffic intersections, usually at the four corners or in the central position of the intersection. The height is set appropriately to ensure that both vehicles and pedestrians can see them. The installation brackets are usually made of metal, which can firmly fix the signal lights.
Inside the red, yellow, and green signal lights, there is usually a control unit that connects the power source and the lamp groups. The power source can be the mains electricity or solar energy. In the control unit, there is a timer or a signal receiving device. The timer can switch lights of different colors according to preset time intervals. The angle of the signal lights can also be adjusted as needed.
Signal lights are widely used in various traffic scenarios, such as urban roads, entrances and exits of expressways, grade crossings of railways and highways, roads inside campuses and factories, entrances of commercial pedestrian streets and so on. Wherever there is a need to manage and direct the traffic of vehicles and pedestrians, red, yellow, and green signal lights can be used to ensure traffic safety and order.
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