Car headlights are essential components of a vehicle that illuminate the road ahead, allowing drivers to see clearly during nighttime or low-visibility conditions. They typically consist of a bulb, a reflector, and a lens, which work together to produce a focused beam of light. Headlights can be halogen, LED, or xenon, each offering different levels of brightness and energy efficiency. In addition to providing visibility, car headlights also serve as a safety feature by making the vehicle more visible to other drivers and pedestrians. Most cars are equipped with various headlight settings, including low beam and high beam, to adapt to different driving conditions. Proper maintenance, such as cleaning and adjusting headlights, is important for optimal performance.