When should I turn on my fog lights in the city?
Fog lights are equipped under or on both sides of each front and rear bumper to help the driver see obstacles more clearly for timely handling.
What are fog lights?
Fog lights are part of the car's lighting system, with a structure and installation location completely different from headlights and taillights. Fog lights are usually placed lower below the front or rear bumper of the car.
When driving in foggy or drizzly weather conditions, fog lights help drivers clearly see the road surface right from the driver's seat or along the road markings on both sides. In addition, drivers can easily recognize the fog lights behind the vehicle in front to keep a suitable distance when participating in traffic. Fog lights operate independently of headlights in cases where headlights do not provide good visibility.

When should I turn on my fog lights?
Fog lights are designed to help drivers see better in foggy conditions when visibility is limited. Therefore, the lights should be turned on when the weather conditions are foggy. Rear fog lights help vehicles behind identify to avoid collision in foggy conditions.
Some countries in the world have signs requiring drivers to use fog lights on certain roads to avoid collisions. Vietnam does not currently have such signs, but the Traffic Police Department has issued a warning to drivers to turn on their fog lights when traveling on mountainous roads.
When driving in the city, drivers can turn on fog lights in the evening or early morning to avoid collisions. Fog lights are very useful, helping oncoming vehicles to quickly recognize the opposite vehicle.
Note, fog lights should not be turned on with high beams (high beams), instead use them in combination with low beams (low beams). The reason is that turning on high beams in the fog not only dazzles oncoming vehicles but also disables the fog lights.
In addition, fog lights are also allowed to be used in some cases such as dirt due to road construction at night, thick fine dust. However, when passing through that section of road, you should turn off the fog lights because it can cause glare for oncoming vehicles.