LED fog bulb is a specialized automotive lighting component designed to improve visibility in fog, rain, snow, and dusty conditions. Unlike regular headlights that reflect off fog and reduce visibility, fog lights are positioned lower on the vehicle and emit a wide, flat beam that cuts through fog and illuminates the road surface more effectively. Modern fog lights commonly use LED (Light Emitting Diode) technology, which provides brighter light, higher efficiency, and longer lifespan compared to traditional halogen bulbs.