When encountering bad weather on the highway, many drivers can’t wait to turn on their double flashers. Many people even have such a mentality that they turn on the double flashing lights and think that they are the "privileged car" that attracts thousands of people's attention. They frequently merge and weave in the traffic flow at high speed in strong winds and heavy rains.
1. When to use fog lights?
Before answering this question, I want to ask you another question first: What is the function of fog lights? Don't rush to cast a disdainful look. Many drivers really can't answer it. Here’s a unified answer: 1. Supplement lighting in rainy and foggy weather; 2. Let people around you notice your presence. The first point is easy to understand, but many people don’t realize the second point. It is precisely because of the lack of understanding of the function of fog lights that many people use fog lights in wrong situations.
Due to this special principle of fog lamps, it has a certain range of use. First of all, the light source of fog lamps has no directionality and looks similar from all angles. When separated by heavy fog, the light intensity is just right. In this way, the fog lights play a role in improving visibility. When the visibility returns to normal, the high brightness and scattering characteristics make the fog lights a very dazzling light source. At this time, the fog lights should be turned off without hesitation.
Secondly, in rainy and foggy weather, fog lights cannot be used at any time. Regarding its use, let’s take a look at the official statement from the Ministry of Public Security:
When the visibility is between 200m and 500m, the low beam, width lights and taillights must be turned on, the speed must not exceed 80kmh, and a driving distance of more than 150m must be maintained with the vehicle in front of you in the same lane;
When visibility is 100-200m, fog lights, low beam lights, width lights and tail lights must be turned on, the speed must not exceed 60kmh, and a distance of more than 100m from the vehicle in front must be maintained;
When the visibility is 50-100m, the fog lights, low beam lights, width lights and tail lights must be turned on, the speed must not exceed 40kmh, and the distance from the vehicle in front should be more than 50m.
When visibility is less than 50m, the public security and traffic control departments will take traffic control measures to close part or all of the highway in accordance with regulations.
In other words, fog lights only come into play when the visibility is less than 200m. There are two reasons: first, when the visibility is greater than 200m, the headlights, width lights, and taillights can already provide sufficient lighting and warning effects; second, the fog at this time can soften the fog lights, and the visibility is poor, requiring fog. lamp as supplementary lighting.
2. Which one is more “conspicuous”, the rear fog light or the double flashlight?
When encountering bad weather on the highway, many drivers can’t wait to turn on their double flashers. Many people even have such a mentality that they turn on the double flashing lights and think that they are the "privileged car" that attracts thousands of people's attention. They frequently merge and weave in the traffic flow at high speed in strong winds and heavy rains. We do not take the time to condemn this behavior, but there are three questions worth discussing: 1. Are double flash lights suitable in rainy and foggy weather? 2. When the double flash lights are turned on but the fog lights are not turned on, when will the fog lights be used at this time? 3. What should I do when changing lanes when double flashing is activated?
The double flashing lights are bright yellow, and the color is close to the fog lights of the past. It makes people feel that everything will be fine when driving it in rainy and foggy weather. In fact, the dual flashlights only look "conspicuous", and the actual effect is not comparable to fog lights at all. First of all, it does not have a special design like a fog lamp, and the light it emits is irregularly scattered like a taillight, rather than a regular radiant pattern; secondly, its brightness is far less than that of a fog lamp.
As for when to use fog lights and which is more conspicuous, rear fog lights or double flashers, this is about it. I hope it will be helpful to everyone. At the same time, fog lights cannot be used casually. They must be used under reasonable weather conditions.
