best voltage setting for brightness

Sprinterman · 12-17-2023, 12:33 PM

As the title says, can anyone tell me which voltage setting would give the best brightness for led front and rear indicators? The obvious answer is 100 % but that’s not always the case. Mine are currently at 13.7 volts, I’ve no issues with the LEDs whatsoever, just curious as to the correct setting

Oksamit78 · 12-17-2023, 09:37 PM

Which app is that?

Sprinterman · 12-18-2023, 02:25 AM

Bimmercode

Oksamit78 · 12-19-2023, 10:16 AM

Quote:

Originally Posted by Sprinterman

Bimmercode

The screens you show are from 3062/3063 or other?

Sprinterman · 12-20-2023, 05:25 AM

3062 rear electronic module

Billfitz · 12-20-2023, 08:36 AM

My educated guess (I'm an electrical engineer) is that the default setting limits the voltage to 13.7v so that the maximum 14.5v or so output from the alternator won't damage the bulbs.

Sprinterman · 12-20-2023, 03:14 PM

So even if I have the setting at 100% 0x64 it won’t increase the brightness as the default is 13.7. So it will be the same in either setting, i understand, Thankyou for the higher voltage setting warning

Sprinterman · 03-11-2024, 06:13 AM

So I did a few tests, night time coding to see the effects of different voltages. 100% definitely throws out less light then 13.7 V. You would think 100% is exactly what it means, but the difference when you use 13.7 V is pretty significant. So I’ve used 13.7V in every LED I installed, apart from the ones which will only allow 100%, the front fogs I coded to 13.7V and it also puts out a much greater light then the 100% setting. Also there is no flickering, but I wouldn’t go to 14V or above as billfitz said, as there is a risk the LEDS will burn out or not last very long. Mine have been in for almost 2 years with no issues

12-17-2023, 12:33 PM	#1
Sprinterman Second Lieutenant 40 Rep 224 Posts Drives: F31 touring Join Date: May 2022 Location: London iTrader: (0)	As the title says, can anyone tell me which voltage setting would give the best brightness for led front and rear indicators? The obvious answer is 100 % but that’s not always the case. Mine are currently at 13.7 volts, I’ve no issues with the LEDs whatsoever, just curious as to the correct setting Attached Images __________________ Martin
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12-17-2023, 09:37 PM	#2
Oksamit78 Lieutenant 272 Rep 467 Posts Drives: E39, F30 & F34 Join Date: Oct 2020 Location: Mississauga, ON iTrader: (9)	Which app is that? __________________ 2003 E39 530i 5-Speed w/ M Spec, Saphire/Black, M54B30, Active Autowerke Performance Tune 2010 Lancer GTS 5-Speed, Black Pearl/Black, 4B12 2015 F30 335i XDrive w/ M Sport Pack, Alpine White/Black, N55B30M0 2017 F34 340i XDrive w/ M Sport Pack, Azure II /Black, B58B30M0, Dinan Stage 1
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12-18-2023, 02:25 AM	#3
Sprinterman Second Lieutenant 40 Rep 224 Posts Drives: F31 touring Join Date: May 2022 Location: London iTrader: (0)	Bimmercode __________________ Martin
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12-20-2023, 05:25 AM	#5
Sprinterman Second Lieutenant 40 Rep 224 Posts Drives: F31 touring Join Date: May 2022 Location: London iTrader: (0)	3062 rear electronic module __________________ Martin
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12-20-2023, 08:36 AM	#6
Billfitz Lieutenant General 8243 Rep 16,082 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	My educated guess (I'm an electrical engineer) is that the default setting limits the voltage to 13.7v so that the maximum 14.5v or so output from the alternator won't damage the bulbs.
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12-20-2023, 03:14 PM	#7
Sprinterman Second Lieutenant 40 Rep 224 Posts Drives: F31 touring Join Date: May 2022 Location: London iTrader: (0)	So even if I have the setting at 100% 0x64 it won’t increase the brightness as the default is 13.7. So it will be the same in either setting, i understand, Thankyou for the higher voltage setting warning __________________ Martin
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03-11-2024, 06:13 AM	#8
Sprinterman Second Lieutenant 40 Rep 224 Posts Drives: F31 touring Join Date: May 2022 Location: London iTrader: (0)	So I did a few tests, night time coding to see the effects of different voltages. 100% definitely throws out less light then 13.7 V. You would think 100% is exactly what it means, but the difference when you use 13.7 V is pretty significant. So I’ve used 13.7V in every LED I installed, apart from the ones which will only allow 100%, the front fogs I coded to 13.7V and it also puts out a much greater light then the 100% setting. Also there is no flickering, but I wouldn’t go to 14V or above as billfitz said, as there is a risk the LEDS will burn out or not last very long. Mine have been in for almost 2 years with no issues __________________ Martin
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