Do car headlights dim over time?
Let me start by reminding drivers that headlights and headlight bulbs are two different animals.
Headlamp bulbs do not tend to dim. However headlamp assemblies, or headlamp lenses, can cause the light to dim. This is a result of oxidation from ultra violet rays of the sun.
How long do headlights last on average?
Headlight bulbs should last five years or so but road and climate conditions will often cause the filament to prematurely break.
What can you do to improve headlight brightness?
Customers cannot really do anything to make the bulbs brighter but regular washing of the lenses helps. If lenses fog or yellow, reconditioning or headlight replacement is necessary.
How do you know when to replace headlights? Do you need to replace both headlights at once?
Replace headlamp bulbs when they no longer work. Changing the pair is recommended but not necessary. Some bulbs can be expensive and/or expensive to get to.
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