Why fog lights are essential additions to your vehicle.

Heavy fog, rain, and other weather conditions that reduce your visibility on the road can make driving difficult—if not downright impossible. If your vehicle isn’t equipped with the right lighting equipment, driving in these conditions can lead to hazardous situations, which in turn can result in serious or even fatal accidents.

This is why fog lights are essential additions to your vehicle. These are entirely different from your regular headlights and have a very specific use.

What are Fog Lights?

A front fog light is a type of automotive light that helps the driver see in front of the vehicle. It’s located below the headlight assembly and is designed to emit a wide beam of light that is shaped like a “bar,” with a sharp cutoff at the top to prevent it from reflecting off of the fog.

Fog lamps are usually mounted reasonably low—typically about 12 to 30 inches above the road surface—and angled downward to illuminate the ground below the fog.

Meanwhile, a rear fog light is designed to produce a red-colored light, much like your brake lights, to ensure that other drivers can see your car in low-visibility conditions. It is sometimes placed in the middle of the rear bumper cover or in place of one of the reverse lights.

While not very common in the US, rear fog lights are mandatory in Europe.

Unlike headlights, fog lamps (whether in the front or in the rear) are not mandatory and are considered auxiliary lights. Fog lights don’t usually come standard on base and lower-tier models, so car buyers are sometimes given the option by their dealer to have them as an add-on.

When to Use Fog Lights

Fog lamps are supplementary lights and can be used in conjunction with your headlights in low-visibility settings. However, they are not designed to take the place of your regular driving lights as they have a very short range.

These lights are useful for seeing road markings, but they will not help you see into the fog—so they are really only helpful when driving at relatively low speeds.

While there are no regulations for when you should use your fog lamps, it’s recommended that you only activate them during certain situations, like the ones listed below:

Fog

Fog is formed in the same way that clouds do—it’s pretty much a giant cloud on the ground. Fog lights are specially made for situations where you find yourself having to traverse foggy areas, hence the name. Due to their low placement, the light that they produce is able to hit the ground underneath, rather than going straight into the fog and simply bouncing back like the light from your headlamps.

Heavy Rain

Fog lights can also offer better visibility under heavy rainfall. High and low beams may produce glare when used in heavy rainfall, which is why you need fog lamps to help you see the road in front of you.

Remember that fog lights only illuminate the part of the road directly in front of your car, so as previously mentioned, they may only be used in conjunction with your headlights and never in lieu of them.

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