Do low beams and high beams use the same bulb?

Do low beams and high beams use the same bulb?

Most modern vehicles have a single bulb with two filaments. One is for the low beams and one is for the high beams. However, that's not true across the board. … If you only have two headlight elements (one per side), then your vehicle uses a dual filament bulb to operate both the high and low beams.

Why do my high beams work and not my low beams?

Most total headlight failures are caused by a bad component like a fuse, relay, or module. Wiring problems can also cause both headlights to stop working. High beam headlights don't work or low beams don't work. The cause: A burned out bulb, or a problem with the high beam switch or relay.

What is a high beam headlight?

When to Use High Beam Headlights If there are no oncoming vehicles, turn on your high beam headlights. … Dim your lights when there are oncoming vehicles, or when you are approaching another vehicle from behind.

What are low beams used for?

Any time your visibility is less than 150 metres because of heavy rain, for example, you'll want to use your low beams headlights. If you were to use your high beams in thick fog, for example, the light would get reflected back to you. Low beams light up the road at short ranges, and you'll mostly use them in the city.