What is the standard for left-right headlight adjustment?

[JoshuaMarie]

The left and right adjustment of headlights is based on the principle that when a person stands behind the car, their side view should align with the cut-off line gap of the low beam. Below is an introduction to the related content: 1. Sedan: For height adjustment, at night on the road, the low beam cut-off line of a sedan with modified lenses should land at 30-40 meters, while unmodified halogen lights should land at about 20 meters. 2. Off-road vehicle: For off-road vehicles with modified lenses, the low beam cut-off line should land at 40-50 meters, while unmodified halogen lights should land at 30-40 meters. Below is extended information on the related content: 1. Height adjustment: Regardless of whether the headlights have been modified, the adjustment method is the same. Some cars have a height adjustment knob inside the vehicle, while many others do not and can only be adjusted via the adjustment knobs on the headlight assembly. 2. Adjustment: Generally, the adjustment on the middle motor is for left-right, and the one on the side is for left-right adjustment. Each headlight assembly usually has two adjustment knobs, with some cars having three or even four, the extra ones being for independent high beam adjustment.