Understanding Headlight Types and When to Use Each One
Last reviewed: 2026 · Driviology Road Safety Education Team
Quick Answer
Low beams are the default for most driving conditions, high beams are for dark, low-traffic roads without oncoming vehicles, and daytime running lights operate automatically to improve daytime visibility.
Most vehicles offer a few distinct headlight settings, and understanding what each is actually for helps you use them appropriately rather than defaulting to whichever is already selected.
Low Beams as the Default
Low beams are appropriate for the vast majority of driving, including in traffic, in town, and whenever other vehicles are nearby.
High Beams for Dark, Open Roads
High beams are best reserved for dark rural roads without oncoming or nearby traffic, and should always be dipped, as covered in our guide to dipping your lights, when another vehicle approaches.
Daytime Running Lights
Daytime running lights operate automatically on most modern vehicles to improve how visible you are to other drivers during the day, without requiring any action from the driver.