the combination headlamp is on the front of the car, it mainly plays the role of illumination and signal. the light emitted by the headlights can illuminate the road conditions in front of the vehicle body, so that the driver can drive safely in the dark. the combined headlights can be divided into halogen lamps and xenon lamps according to their functions (1 ) low beam lights, (2) high beam lights, (3) front turn signals, (4) front position lights (also called width lights, position lights that indicate the presence of vehicles), front fog lights. fog lights are not required by national regulations, and all models are basically equipped.