Fog lights are designed to provide illumination and warning functions in low-visibility weather conditions. Their high-intensity light has stronger penetration in adverse environments such as rain, fog, and snow, effectively improving vehicle visibility. According to traffic regulations, when visibility drops below 200 meters, fog lights must be activated along with low-beam headlights, position lights, and taillights, while maintaining a speed below 60 km/h and a safe following distance of over 100 meters. Persistent use of fog lights in normal weather conditions may cause direct visual interference to other drivers due to their glaring red or yellow light, particularly creating glare effects at night and increasing traffic accident risks. Furthermore, some vehicle models feature an interlock system where fog lights automatically deactivate when position lights are turned off, demonstrating the emphasis on proper lighting usage. Proper operation of fog lights should adhere to the "activate when necessary, deactivate promptly" principle, ensuring both driving safety and avoidance of penalties including a minimum fine of 50 Malaysian Ringgit and 1 demerit point for improper use.
