What is meant by "Drive within the range of your headlights?"
"Driving within the range of your headlights" means driving at a speed that lets you stop safely within the distance that your headlights can illuminate. Your high-beam headlights can light the road up to 350 feet ahead. At 60 mph, your vehicle will travel 350 feet in just four seconds. If there is a hazard more than 350 feet ahead, you may not be able to see it in time to avoid it. To give yourself more time to react, slow down.