Functional classification and safety value of automobile taillights
Sep 22,2025
Automotive taillights are not a single component, but a comprehensive functional system consisting of brake lights, turn signals, reversing lights, clearance lights, and fog lights. Each type of light group plays a crucial role in safety. Brake lights are usually red and installed on both sides of the car's rear. They automatically illuminate when the driver steps on the brake pedal, reminding the following vehicles to slow down through high brightness and avoiding rear-end collisions. Turn signals are divided into left and right groups, with a flashing frequency strictly controlled at around 1.5Hz. They clearly convey the vehicle's intention to turn or change lanes and are important signals in horizontal traffic flow. Reversing lights are mostly white and automatically turn on when reversing, illuminating the road behind the car and warning pedestrians and vehicles behind. Clearance lights are usually on at night or in low visibility environments, marking the vehicle's outline and width. Some models are equipped with rear fog lights, which use highly penetrating red light to enhance vehicle recognition in heavy fog. These light groups work together to form a "language system" behind the vehicle, directly affecting driving safety.
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