Regardless of what color they are and even though it is never enforced, in the state of PA they are called multi-beam lights and are subject to the same use as high beam lights. In other words within 500 ft. of an oncoming vehicle or following a vehicle 500 ft or less ahead of you they are required to be off. It is never enforced any more though. I remember when I first started driving cars back in 1974, the police were always harassing us about them! Maybe the law was changed recently, but I know as of 5 years ago a state trooper told us that at a safety meeting!
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