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      07-02-2019, 06:52 PM   #1
kenship
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Adjust halogen voltage through Carista

I subscribed to Carista app for 1 week, my main target is DRL. My car is 2011 e90 323i with halogen headlights.

Now I have angel eyes + fog lights as DRL. And I notice that I can change voltage for low and high beam and increase them to 13.8v. I think I can also change fog lights as well.

My question is: is 13.8v too much that will shorten life of the bulb? I think the factory output is 13v.

Ken
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      07-03-2019, 02:03 AM   #2
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Quote:
Originally Posted by kenship View Post
I subscribed to Carista app for 1 week, my main target is DRL. My car is 2011 e90 323i with halogen headlights.

Now I have angel eyes + fog lights as DRL. And I notice that I can change voltage for low and high beam and increase them to 13.8v. I think I can also change fog lights as well.

My question is: is 13.8v too much that will shorten life of the bulb? I think the factory output is 13v.

Ken
If you have LED bulbs they often come with their own drivers and control voltage independently so you won't see any difference. Just for your info.
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      07-04-2019, 12:29 PM   #3
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Quote:
Originally Posted by Sensible_ View Post
If you have LED bulbs they often come with their own drivers and control voltage independently so you won't see any difference. Just for your info.
I have increased the voltage on aftermarket LED bulbs on a 1 series using Protool. It worked great.
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      07-04-2019, 03:06 PM   #4
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Probably not the best quality LEDs then I guess.

Anyway, upping the voltage will always short the life but I can't see those figures causing a problem.

If you want to be extra sure email your bulb manufacturer for the LED details and download the data sheet. Tolerances should be explained in that.
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      07-10-2019, 09:21 PM   #5
kenship
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Thks. I keep 13v as I didn't notice any difference in 13.8v.
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      07-10-2019, 09:42 PM   #6
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When I increased it on my car, factory halogen halos, it was set to 7.5v! Protool app says max safe is 14, so I kept them at 13.5v
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