What is the height standard of car headlight adjustment

Drive the car on a flat road, adjust the low beam point at a distance of 30 meters and overlap the two points, and adjust the high beam point to be parallel to the ground. The wall is used to reflect the two high beam points parallel. The adjustment position of the car headlight is on the knob on the back of the lower left corner of the steering wheel.

　　

Car headlights are called car headlights and car LED daytime running lights, which are mainly used to ensure the driver's driving line of sight. The headlight assembly also includes a width indicator light, which is used for driving at night in the evening, mainly to tell other running lights the position of the car and improve the safety of driving at night. There are two screw knobs behind the car headlight assembly, which can be seen as long as the hood is opened. One is for height adjustment, and the other is for width adjustment. The left, right and height can be adjusted through the knobs. Generally, you only need to adjust the height, because the height of the headlights of the car will cause a certain error as the car drives on the bumpy road over time. At this time, we need to re-adjust to avoid affecting the driving safety. The left and right adjustments only need to be adjusted when the light is not concentrated.