A forward fog lamp is an automobile headlight designed to glow with a strip beam. The beam is usually designed to have a sharp cut-off point at the top, and the actual light is usually mounted low and aimed at the ground at an acute Angle. As a result, fog lights lean toward the road, sending light to the road and illuminating the road instead of the fog layer. The position and orientation of fog lights can be compared and contrasted with high beam and low light lights to reveal exactly how different these seemingly similar devices are. Both high and low light headlights aim at relatively shallow angles, allowing them to illuminate the road far in front of the vehicle. By contrast, the acute angles used by fog lights mean they only illuminate the ground directly in front of the vehicle. This is to ensure the breadth of the front shot.
