For some inexplicable reason, many car owners do not consider the condition of their headlights until it is too late. Perhaps they are on a long trip when their headlights suddenly go out, or they drive to the shop one evening only to be stopped by a pleasant police officer who says, “Did you realise you had a headlight out?”
What information should every driver and vehicle owner be aware of about basic headlight health, maintenance, and replacement? For starters, you’ll be in danger on dark roads if your headlights go out altogether or just fade to a reduced beam strength. This is because people will not notice you and you will not be able to see them or the road properly.
https://www.theautopartsshop.com/blog/your-guide-to-buying-the-perfect-car-light-bulb