The main components include headlights (both high and low beam), daytime running lights, fog lights, turn signals, brake lights, back-up lights and taillights.

Headlights help illuminate the road, with the high beam used to provide long-range illumination when there is no oncoming traffic and the low beam preventing illumination of drivers in the opposite lane.

Daytime running lights are used to improve daytime visibility, while fog lights are designed to improve visibility in low visibility conditions.

Turn signals indicate the vehicle's intent to turn, brake lights warn vehicles behind you when braking, and reverse lights alert people and vehicles around you when backing up.

Tail lights mark the position and width of the vehicle to ensure safe nighttime driving. With technological advances, modern vehicle light systems use efficient light sources such as LEDs and xenon lamps, and integrate intelligent features such as adaptive headlight systems and automatic high and low beam switching, which not only improves lighting efficiency and safety, but also enhances the aesthetics and personalization of the vehicle.