Explanation

When vehicles are crossing each other at night, they should use lower beams to ensure safety and visibility.

Here's why: 

1. **Reduced Glare**:

Lower beams prevent temporary blindness and allow all drivers to see the road. 

2. **Visibility**:

Lower beams provide sufficient lighting for drivers to see the road ahead 

3. **Avoid Distractions**:

By using lower beams while crossing each other at night, drivers can avoid distractions caused by high beams and focus on driving safely, reducing the risk of accidents.