What does the auto light on a car mean?

[RowanLee]

The auto light on a car refers to the automatic headlights. More related information is as follows: 1. The headlights will automatically turn on or off based on the light sensing system, enabling automatic activation or deactivation, as well as automatic switching between high and low beams. When the light is set to this position, the lights will not turn on during the day, but they will automatically activate at night, such as when driving through tunnels, on cloudy days, or in any dimly lit areas. 2. The working principle of the auto light is: sensors like photoresistors send electronic signals to the control unit, informing it whether to turn the headlights on or off, and then the control unit manages the headlight switch and the change between high and low beams.