Adjusting Headlights for Width or Narrowness?
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Car headlights should concentrate the light beam as much as possible. If the light is too scattered, it will become blurry, affecting the illumination effect and potentially disturbing other vehicles. There are two adjustment screws at the back of the car headlights: one for adjusting the height and the other for adjusting the width. These can be adjusted by turning the knobs for left-right and height alignment. When adjusting the lights, avoid using a wall. Instead, drive the car onto a flat road and adjust the low beam's focal point to 30 meters, ensuring the two points overlap. Adjust the high beam to be parallel to the ground, ensuring the spots are aligned. Park the car 7.6 meters away from a vertical wall on level ground. Measure the height of the headlight centers and the distance between the two headlights. Place a horizontal masking tape on the wall 0.1 meters below the headlights, ensuring it is centered relative to the car. Adjust the vertical adjustment screw until the headlight beam is centered on the tape. Continue adjusting the vertical screw until the beam projects straight ahead. To ensure proper adjustment, measure the height of the beam on the wall and the headlight height to confirm they are equal.