When overtaking another vehicle at night, why should you use low beams?

Using low beams when overtaking another vehicle at night is essential primarily to avoid blinding the other driver. High beams create significant glare, which can temporarily impair the vision of oncoming or adjacent drivers and potentially lead to dangerous situations. By using low beams, you ensure that other drivers can see clearly without being disturbed by excessive brightness, which is crucial for maintaining safety on the road. This practice helps in creating a more predictable driving environment, allowing everyone on the road to navigate safely.

Options focused on saving battery power or making a choice based on legality do not address the immediate concern of safety during nighttime driving. While improving visibility may be a factor, it is less about general road conditions and more about the specific interaction between vehicles at night. The critical emphasis is on ensuring the safety and visibility for all drivers involved, thus reinforcing the importance of using low beams in this scenario.