Headlight arrangement for a land vehicle

A headlight arrangement for a land vehicle (1), especially a motor vehicle, comprises at least one headlight (7,8) adjusted by an actuator so that an optical axis of the light (3,4) is adjusted up or down according to the dip angle relative to the vehicle. A surface model determines the effect of unevenness on the angle and a device corrects for this. An independent claim is also included for a land vehicle, especially a motor vehicle comprising the above headlight.