How many fog lamps are permitted by law?

The law permits the installation of two fog lamps on a vehicle. This configuration is designed to optimize visibility in adverse weather conditions, such as fog, rain, or snow. Having two fog lamps helps to provide even illumination of the road immediately in front of the vehicle, reducing the amount of light that reflects off the fog, which can occur with a single lamp.

Additionally, using two fog lamps enhances the driver's ability to see the road and any potential hazards while minimizing glare for oncoming traffic. This regulation is in place to ensure safety on the road, balancing the need for adequate lighting with considerations for visibility for other drivers.

Other numbers, such as three or four fog lamps, are not permitted as they may lead to excessive glare and light pollution, which can be hazardous not just for the driver, but also for other vehicles on the road. Moreover, regulations typically limit the number of auxiliary lights to prevent confusion and maintain uniformity with vehicle lighting standards.