I have noticed on newer cars that when the directional (turn signal) is on, the headlight on the coinciding side goes off. What is the benefit, if any, of this function?

Question

I have noticed on newer cars that when the directional (turn signal) is on, the headlight on the coinciding side goes off. What is the benefit, if any, of this function?

In: Technology

Answer 1

Turning off the bright headlight may make it easier to notice the turn signal, especially when it is otherwise dark out. I.e., If someone shines a bright light in your eyes, you may not notice any other lights near the light source.