When must you use low beams instead of high beams?

Using low beams instead of high beams is necessary when there is oncoming traffic within 500 feet. High beams can cause significant glare and impairment for other drivers, which can increase the risk of accidents. By switching to low beams, you ensure better visibility for yourself while being considerate of others on the road. The rules for using headlights aim to keep all drivers safe, particularly in situations where visibility is compromised due to bright lights.

In contrast, high beams are generally appropriate for use in areas with little or no traffic, such as unlit rural roads, as they can illuminate a larger area. Driving with high beams only during the daytime is unnecessary since headlights are primarily used in low-light conditions. Using low beams in the rain is helpful, but it is not the sole instance when they should be applied; the paramount concern is the proximity of oncoming vehicles.