A website touting the Sylvania SilverStar headlight bulb says it provides "up to 30 percent" greater visibility down the road. That sounds impressive until you read the fine print: "compared with ...

you’ll find the headlight and front turn signal bulbs. Disconnect the electrical power wire from the bulb by pulling on the tab and removing the auto light socket from the end of the bulb.

How well your headlights do this will be determined by the quality of their bulbs. So with that in mind we conducted a test to find the best headlight bulbs of 2018. All the bulbs tested were H4 ...