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Under What Circumstances Should Fog Lights Be Turned On?

4 Answers
GenevieveDella
09/06/25 6:30am

Here is an introduction to the conditions for turning on fog lights: 1. According to traffic regulations, when visibility is between 100-200 meters, fog lights, low beams, width markers, and taillights must be turned on, the speed must not exceed 60 km/h, and the distance from the vehicle in front must be more than 100 meters. 2. When visibility is between 50-100 meters, fog lights, low beams, width markers, and taillights should be turned on, the speed must not exceed 40 km/h, and the distance from the vehicle in front should be more than 50 meters. Additionally, improper use of fog lights may result in a minimum fine of 50 yuan and a deduction of 1 point. 3. Under good visibility conditions, the use of fog lights is absolutely not allowed. This is because the red light from fog lights can cause real harm to human eyes when directly shining on them without the attenuation caused by obstacles such as fog, rain, or snow.

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VanAshley
09/18/25 6:14am

As someone who frequently drives on rural roads, I know how crucial fog lights are in low-visibility weather. For example, during heavy fog when visibility drops below a hundred meters, turning on the fog lights can make the road ahead clearer and make it easier for vehicles behind to notice me. Once, when I was rushing for an early bus in extremely thick fog, I nearly hit an obstacle because I hadn't turned on the fog lights. Since then, I've made it a habit to immediately activate the fog lights in heavy fog, heavy rain, or snowy conditions with fog. This also helps others identify my position, reducing the risk of accidents. However, avoid using fog lights on clear nights or in dry weather, as those beams are too bright and glaring, potentially causing dazzle and affecting other drivers. I also regularly check if the fog lights are functioning properly to prevent failure in critical moments. Safety always comes first—using fog lights appropriately can save lives. Don't wait for an accident to happen; developing the habit of timely vehicle checks is always the right move.

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LeAbel
11/01/25 6:41am

In various scenarios involving automobiles, the timing of fog light usage requires skillful judgment. Primarily, they should be activated when adverse weather conditions impair visibility, such as during dense fog, heavy rainfall, or snowstorms with visibility under 100 meters. Fog lights can penetrate moisture to help navigate and avoid blind spots. However, many misuse fog lights in clear weather, inadvertently increasing safety risks. I never use fog lights on sunny days or bright moonlit nights, as this can impair other drivers' vision and cause accidents. The correct approach is to assess the environment: if distant objects appear blurred, immediately activate the fog lights. Additionally, regular maintenance of the lights ensures they aren't aged or damaged, preventing failures at critical moments. Simply put, fog lights aren't decorative; they protect you and others only when used in low-visibility conditions.

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LaJaxon
12/15/25 6:49am

I believe that following fog light rules while driving is about protecting lives. Turning on fog lights during heavy fog or when rain and snow impair visibility increases your chances of being seen and reduces collision risks. Regulations require fog lights to be activated when visibility falls below standard levels to alert other vehicles. Fog lights are not everyday lights and should only be used in severe weather, otherwise they can cause glare hazards. I make it a habit to only activate fog lights in necessary weather conditions, making driving safer and more reassuring.

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