What does the auto light on the car mean?

[SophiaRose]

The auto light on the car refers to the automatic headlights, which will automatically turn on or off based on the light sensing system. It can realize automatic activation or deactivation, as well as automatic switching between high and low beams. When the headlight is adjusted to this position, it will not turn on during the day, but will automatically activate at night, such as when driving through tunnels, on cloudy days, or in any dimly lit areas. The working principle of the auto light is as follows: electronic components like photoresistors act as sensors to send electronic signals to the control unit, informing it whether to turn the headlights on or off. The control unit then manages the headlight switch and the change between high and low beams.