The function of the car's fog lamp

The function of the fog lamp is to let other vehicles see the vehicle when the visibility is greatly affected by the weather in foggy or rainy days. Therefore, the light source of the fog lamp needs to have strong penetration. General vehicles use halogen fog lamps, and led fog lamps are more advanced than halogen fog lamps.

The fog lamp can only be installed below the bumper and the body closest to the ground to ensure the function of the fog lamp. If the installation position is high, the light can not penetrate the rain and fog to illuminate the ground (the fog is generally thin below 1m), which is easy to cause danger.

As the fog lamp switch is generally divided into three gears, gear 0 is off, the first gear controls the front fog lamp and the second gear controls the rear fog lamp. The front fog lamps work when the first gear is turned on, and the front and rear fog lamps work together when the second gear is turned on. Therefore, when turning on the fog lamp, it is recommended to know which gear the switch is in, so as to facilitate yourself without affecting others and ensure driving safety.