Brake Lightbulb question.
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Postmaster
Joined: Jun 2004
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From: B/CS, Texas!!
Brake Lightbulb question.
Does the bulb get more voltage when the brake pedal is applied? like at night when you have your lights on, the bulbs are on and when you press the brake they get brighter, so do they get more volts? yea dumb question, but i need it for something.
Posting Guru
Joined: Jan 2002
Posts: 1,346
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From: Baltimore
The bulb has two filaments inside it.
One filament is for the tail light and one filament is used for the turn signal and brake.
The bulb runs off of 12 volts. It just looks brighter because of two filaments lighting at the same time.
One filament is for the tail light and one filament is used for the turn signal and brake.
The bulb runs off of 12 volts. It just looks brighter because of two filaments lighting at the same time.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
The brake light/turn signal portion I'm pretty sure also has a lower resistance in the filament to make it burn brighter than the running light portion. Much like high and low beam headlights.
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