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Depends. Sometimes it's a bulb with dual filaments(glow wires). One will have a lower power and sit at a slightly different spot in the reflector causing it to cast a lower and weaker beam less likely to dazzle oncoming traffic. Sometimes it's a lower power bulb in its own separate reflector.
What else can I help you with?
Why is one of your civic 97 Ex low beam not working but high beam works fine?
Low beam bulb is burnt out. Replace it.
High beam works Low beam doesn't on 93 Cadillac Allante?
It's a Cadillac, what do you expect?
What could be the problem if the high beam on the passenger side works but the low beam does not on a 1996 Ford Taurus?
most likely problem is that the low beam side of bulb or sealed beam is burned out replace with a new one
Is there a headlight fuse on a 1998 ford Expedition Eddie Bauer only one low beam works but both high beam works?
Try changing the bulb that doesn't have the low beam. Check at your local auto parts store for the correct bulb.
Why would one headlight not work on low beam but both work on high beam?
If one headlight works on high beam but not on low beam, it typically indicates a problem with the low beam socket, the bulb, or the wiring specific to the low beam circuit. The high beam setting often bypasses certain components, allowing both headlights to function even if one low beam is faulty. It could also be due to a blown fuse or a bad connection in the low beam circuit. Checking the bulb and connections for the non-working low beam is a good first step in troubleshooting.
Why doesn't the low beam and the drivers side work High beam works fine?
Its possible that the low beam filimant is burnt out or if you have separate lamps for high and low, that could be it too. You can lookup your vehicle below to see if you have separate high and low beam lamps - this may help - see sources and related links.
What could be the problem if the high beam on the driver's side works but the low beam does not on a 1996 Ford Taurus?
It is very likely the bulb. The low beam gets much more use and most often fails first.
Why does Low beam not work but high beam works?
Replace your dimmer switch and this should fix your problem Or both bulbs could be bad
If on a 2000 Honda Civic one headlight high and low beam works fine only the high beam works on the other could it be the dimmer?
You need to change the light bulb, the high and low beam on some vehicles are contained in a single bulb. or you could have a bad connection on just that one light
Why do 96 Chevy truck headlights not work on high beam?
Usually it will be either the dimmer switch or a connecter if the low beam works and highs don't.
1992 Nissan 240SX Headlight low beam does not work high beam works?
Check the bulb Check to see if you are getting power to the socket
When you put your low beams on you only have one headlight that works and you checked fuses and relay that's not it so you have to use your high beams as your lights?
Most likely the vehicle has separate low-beam and high-beam headlight bulbs and you simply have one low-beam bulb that is burnt out.
