During daytime and good visibility, dipped beam or DRL (Daytime running lights)
Evening, mornings and night, when ambiet light sources is is good such as example streets/highway spotlights for an example..the ambient light is sifficient.. .Then ONLY use dipped beam...not allowed to use full beam.
When poor visibility, no ambient lights...situation no meeting traffic, then full beam...if approacheng traffic, you MUST go to dipped beam, as youre lights in full beam blinds the oncoming traffic...
Do not use full beam when heavy fog or heavy snowing as the reflection causes a white wall and you dont see anything...
Hope this clearifys youre doubts about the cars mainlights.
A tip, as i assume English your native language, get your hands on a English version of the school book, way easier for ya....
Sorry for my poor english, as its not my native Language.
Som jag skrev, hoppas du förstod vad jag skrev där
/Guest....