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.
anybody know where to get 1" pre-cut MDF board for subwoofer in PENANG? I have been searching everywhere. want to make my own sub. could only find 3/4" one in hardware store.