Under which condition should you use high beams?

Using high beams is appropriate when driving alone on dark roads because they provide increased visibility over a longer distance, allowing you to see potential hazards, road signs, and obstacles well ahead of your vehicle. This is particularly important in rural or less populated areas where street lighting may be minimal or nonexistent.

In well-lit urban areas, using high beams can create glare for other drivers and is typically unnecessary since streetlights illuminate the road effectively. Foggy conditions can scatter the light from high beams, making it harder to see, so low beams are generally recommended. Furthermore, when behind another vehicle, using high beams can blind the driver ahead, potentially leading to dangerous situations, so low beams should be used in such scenarios to maintain safety for all road users.