Why can't we use fog lights as daily lights? Let's take a look at the comparison chart below. I took these two pictures on a foggy night. We can intuitively see the difference between the fog light and the low beam light.

The difference between fog lamps and low beam lamps lies in the angle of illumination, brightness, light source penetration, etc. In these respects, fog lamps are stronger than low beam lamps.

The function of the dipped beam is to illuminate a certain distance in front of the car, the illumination angle is lower than the horizontal line, and the power of the bulb is not large, so it will not cause interference to the drivers of other vehicles.

However, in a foggy day, the low-beam light with weak penetrating power is very difficult. At this time, the fog lamp must be used to make up for the defect that the low-beam light cannot penetrate heavy rain and dense fog. Therefore, the fog lamp can only be used as an emergency lighting tool under severe weather conditions, and cannot be used as a daily lighting lamp.

In order to make everyone's feelings more intuitive, I found a nice night and used the driving recorder in my car to take pictures of some vehicles turning on the fog lights. Let's take a look at how dazzling the front and rear fog lights are in a high-visibility environment:

From the picture taken by the driving recorder, the brightness of the fog lamp is much higher than that of the ordinary car light, and when observed with the naked eye, the glare is more serious than that of the video shot. If the driver’s eyes are irradiated by the fog light for a long time, it is easy to feel dizzy and dizzy. This is how the title of "eye-destroying device" comes from...