What light should I turn on when driving in rainy days?

Lights to turn on when driving in rainy days: turn on the low beam when it is small to moderate rain; Use low beam lights and front fog lights in heavy rain; Use low beam lights and front and rear fog lights in heavy rain. Precautions for driving in rainy days: 1. No matter how wide the road is and how the road surface is, drive slowly in the rain, pay attention to the vehicles in front and behind, and be prepared to take various emergency measures in advance; 2. If the driving vision is blocked in rainy days, keep the distance between cars, observe the distance between the front and rear cars at any time, and increase the safe distance; 3, pay attention to observe pedestrians, slow down, patiently avoid, if necessary, you can choose a safe place to park, and you must not compete with pedestrians and bicycles; 4. In case of rainstorm or heavy rainstorm, some sections will be seriously flooded in a short time. If you have to wade, you should use low gear to pass at a constant speed. If the vehicle stops running, do not try to start it again. Blind starting may lead to engine scrapping. After the vehicle is turned off, you should contact the specialized shop in time. After the maintenance personnel check the vehicle on site and make sure there is no problem, they can start it again.