light. as mentioned above, if you can’t see the car in front of you, then the car behind can’t see you – and then it’s time to turn on your main lights.
most cars will have a small dial next to the lights that actually changes their angle if the car is heavily loaded or towing. the car will lean back and point up, so normal lights could dazzle drivers. get a friend to help test this and set them up correctly if this will apply to you.
a lot of newer cars have automatic headlights. they use a sensor to automatically turn on the lights when it gets dark. they do 