When should low beam headlights be used at night?

Low beam headlights should be used at night when meeting or following another vehicle to ensure safety and visibility for both drivers. This practice helps to prevent blinding the oncoming driver, as high beam headlights can cause significant glare. By using low beams in these situations, you maintain a clear line of sight while also being considerate of other road users.

In contrast, using low beams in heavy fog, while tempting, is not always the best decision since fog can reflect light in a way that makes visibility worse. In foggy conditions, specialized fog lights or an appropriate combination of headlights may be more effective. Driving through a construction zone may have specific lighting regulations, but the primary concern would typically be to use low beams to minimize glare for workers. Parking on the side of the road would generally require hazard lights or parking lights rather than low beams. Hence, the correct context for using low beams primarily revolves around the interaction with other vehicles, maximizing safety for everyone involved.