What is the purpose of fog lights?

[DiJasmine]

The purpose of fog lights is to make the vehicle visible to other drivers in conditions of reduced visibility such as fog or heavy rain. Therefore, fog lights require a light source with strong penetrating power. Most vehicles use halogen fog lights, while xenon fog lights are considered a more advanced option. Fog lights must be installed below the bumper, at the lowest point of the vehicle body closest to the ground, to ensure their effectiveness. If installed too high, the light cannot penetrate the rain or fog to illuminate the road surface, which can easily lead to hazards. The fog light switch typically has three positions: position 0 turns them off, position 1 controls the front fog lights, and position 2 controls the rear fog lights. When set to position 1, only the front fog lights are active; when set to position 2, both front and rear fog lights operate simultaneously.