low beams

US /ˈloʊ biːmz/
UK /ˈloʊ biːmz/
"low beams" picture
1.

luces bajas

headlights on a vehicle that are directed downwards to avoid dazzling oncoming drivers

:
Remember to switch to your low beams when there's oncoming traffic.
Recuerda cambiar a las luces bajas cuando haya tráfico en sentido contrario.
It's getting dark, so turn on your low beams.
Está oscureciendo, así que enciende tus luces bajas.