Can low beam lights improve visibility in foggy days?

Turning on the low beam in foggy days can improve visibility. In foggy days, you can turn on the low beam to illuminate the road ahead, and at the same time turn on the danger warning flash, but you can't use the high beam. The light emitted by the high beam of the car shines forward and upward, and after being reflected by the fog, it will travel in the white area in front of the car, which will not only fail to illuminate, but also seriously block the driver's line of sight and vision. When the rear vehicle uses the high beam, it will also seriously affect the driver's observation of the rear situation. So you can't use the high beam when driving in foggy weather.

Principle of low beam lamp

The principle of low beam and high beam is to draw and stretch the light distance on the reflective bowl by changing the filament position of low beam before and after. The use method of low beam and high beam is that the headlight switch is on the light switch assembly on the left side of the steering wheel, the knob can turn on and off the low beam, and the fork can turn off the high beam. The headlight switch of some vehicles is located below the air conditioning outlet on the left side of the steering wheel. The knob turns on the low beam or automatic headlight, and the high beam is turned on through the fork.