Should Automatic Headlights Be Turned Off When the Car Is Turned Off?

1 Answers
VanLuna
07/28/25 6:30pm
Automatic headlights should be turned off when the car is turned off. After the car is turned off, the generator stops working, and the only power source for the entire vehicle is the battery. If the headlights remain on for a long time, it can easily lead to battery depletion, affecting engine startup and shortening the battery's lifespan. The working principle of automatic headlights is as follows: through a photosensitive sensor, voltage signals formed by changes in external lighting conditions are fed back to the automatic headlight control module. After data analysis, the module determines whether the headlights should be turned on or off. Automatic headlights refer to car headlights that automatically determine whether to turn on or off based on external lighting conditions. While driving, when the headlight switch is rotated to the 'auto' position, the car's headlights will automatically turn on in dimly lit areas and automatically turn off when lighting conditions improve.
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