What is the main function of headlights?

The main function of headlights is to illuminate the road ahead during darkness or low visibility. This is crucial for safe driving, as headlights help the driver see the roadway, obstacles, and other vehicles when light conditions are poor. The ability to see and be seen is fundamental to preventing accidents, as it enhances the overall safety of both the driver and other road users.

While signaling other drivers and assisting in parking are important aspects of vehicle operation, they are not the primary function of headlights. Signaling typically involves turn signals or brake lights, which communicate intentions to other drivers, while parking lights and reverse lights do assist in parking but are not the core purpose of headlights. The aesthetic benefits of headlights, such as making a car more visible for style, are secondary to their main purpose of providing illumination on the road. In summary, headlights are essential for visibility, which is paramount for safe driving conditions.