High beam refers to a setting on a vehicle's headlights that provides maximum illumination. This feature is designed to enhance visibility during nighttime driving or in low-light conditions. High beams project a bright, focused light that can illuminate the road ahead much farther than standard headlights, making it easier to see obstacles and other vehicles. However, high beams can be blinding to oncoming drivers, which is why it's important to switch to low beams when approaching other vehicles or when driving in well-lit areas. Proper use of high beams contributes to safer driving conditions for everyone on the road, including pedestrians and cyclists.