Bro, this is very subjective, its depand on the type of headlight you are using and how high is the angle of your beam. Basically projection headlight with proper beam angle should be quite safe as its not too glaring.
I was wondering when should i change my disc rotors? Does it count by mileage or by looking at the disc? I dont know how to check it. My mileage is about 132,000 km and never changed disc rotors before.