Dim headlights form high beam to low beam
Turn off headlights and leave parking lights on.
Turn off headlights and leave parking lights on
Turn off headlights and leave parking lights on.
turn off headlights and leave parking lights on
according to Florida handsbook, you must dim your bright headlights within 300 feet of the vehicle ahead.
at least 2m
In most states it is 500 Feet. Common sense should prevail.
500 to 1000 ft.
Be considerate in using your high beams. Your headlights must be on low beam when you are within 500 feet (150 m) of an approaching vehicle, or within 200 feet (60 m) of a vehicle ahead of you, even if the vehicle ahead is in a different lane. You should also dim your lights for pedestrians approaching you. http://www.nydmv.state.ny.us/dmanual/chapter10-manual.htm (Alaska and Oregon are the same as New York - 500 feet.)
in florida you must dim your headlights from the oncoming traffic at 500 feet. and from the rear at 300 feet.
Those laws vary from place to place. Common courtesy dictates to dim your lights well before they reach the oncoming vehicle.