Do You Need to Turn on Low Beam When Using Fog Lights?

[AdrielMarie]

It is not always necessary. When visibility is below 200 meters, both fog lights and low beams should be turned on simultaneously. In heavy fog conditions, all lights must be activated along with hazard lights. The differences between fog lights and low beams mainly lie in their illumination angles, brightness, and light penetration capabilities. Here are some relevant details: 1. Fog lights have strong penetration power. In heavy fog, they can cut through dense fog to provide clear visibility of the road ahead. However, fog lights should only be used in heavy fog conditions. Their wattage is much higher than low beams, and their illumination angle, brightness, and penetration are significantly superior. While highly effective in foggy weather, their excessive penetration can cause glare. Using fog lights in normal weather conditions can severely disturb drivers of vehicles in front or behind, potentially leading to accidents. 2. Low beams illuminate a certain distance in front of the vehicle with relatively low wattage, and their illumination angle is below the horizontal line. Using low beams while driving has minimal impact or interference on other vehicles.