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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Angel Eye Brightness Increase



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      02-07-2017, 09:06 PM   #1
remixsecret
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Angel Eye Brightness Increase

Hey, the question I have for today is that:

If I just bought some LED's off Amazon and installed them to replace my halogen angel eyes, can I code the Angel Eye brightness from 12V to 13.7V and it should be okay? Will it be any brighter like how the halogen bulbs would be brighter? I tried searching the forums and Google, but haven't found an answer. I know many suggested LUX on this forum, but I didn't want to spend another $310 after CAD conversion on another set when I had my old pairs breaking on me.

Thanks!
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      02-07-2017, 09:25 PM   #2
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I don't think LED brightness changes with voltage, but am not 100% sure.
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      02-08-2017, 12:56 PM   #3
remixsecret
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I thought it would because some of the newer models are able to increase their voltage!

Also when headlights are enable, the angel eyes drop in voltage as they dim from 12V to 4V. So I see why not increasing it to 13.7V would possibly make it brighter. Any inputs from anyone else?
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      02-08-2017, 12:59 PM   #4
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Quote:
Originally Posted by remixsecret View Post
Any inputs from anyone else?
Very polite way of saying I don't know what I'm talking about! hahaha

Good luck, sorry I couldn't be helpful.

All I know is my aftermarket LED AEs don't dim after the car is running, they are always at the same brightness. I have not coded my car for that specific feature (have coded other unrelated features).
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      02-08-2017, 01:36 PM   #5
remixsecret
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Quote:
Originally Posted by Ali-323i View Post
Very polite way of saying I don't know what I'm talking about! hahaha

Good luck, sorry I couldn't be helpful.

All I know is my aftermarket LED AEs don't dim after the car is running, they are always at the same brightness. I have not coded my car for that specific feature (have coded other unrelated features).
Haha! I didn't mean it that way! It's just that I'm getting coded Friday and want to know if it's possible ! What LED are you running
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      02-08-2017, 02:25 PM   #6
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Quote:
Originally Posted by remixsecret View Post
What LED are you running
I have full aftermarket headlights. Not just LED bulbs or LED rings in my existing OEM headlight.

Probably not very helpful.
Why don't you try the coding and just see if it makes a difference? Especially when the car is running and the lights dim.
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      02-09-2017, 08:08 PM   #7
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You can increase voltage and get a very minute increase in output (Sometimes).

It is also possible the increased voltage will cause the LED to fail earlier, depending on the quality.

So it comes down to just doing it and rolling the dice.

There are other options available in the vendor section of these forums that may be brighter then your current solution.
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      02-09-2017, 09:14 PM   #8
matteblue3er
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If the LED is driven with a constant current circuit, brightness won't change as any input voltage will output the same current.

You can easily test this by using a 9v battery and an 18v battery. See if the brightness changes. A typical laptop battery is 18v. Don't apply 18v for more than a few seconds.
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