Fog lamps factory when will introduce you to use high beam?

Late when we are in lack of lighting on the road driving, high beam to ensure safety, we can take into consideration the open - — In the direction ahead about 150 meters, if you don't have to or synthetic vehicles we can open the high beam. If we meet each other to the vehicle opens the immoral behavior of high beam, the first thing we have to do is flashing headlights, remind each other dipped headlight switch.