Wiring LED lights with filament bulb in series

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Thread Starter


Joined Jan 28, 2013
ok I hope someone can help me. I have installed some hard bags on my motorcycle that has LED running/brake lights (3 wires), My motorcycle has a filament bulb that is also running/brake.

I can not get the LED to work correctly, I can get the led running lights to work with no issues by them seld. Once I plug in the wires for the brake lights the LED's go out all together. I have attached the wiring diagram for my bike in hopes someone can help me



Joined Mar 24, 2008
The owners of All About Circuits has elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6. Restricted topics. The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

  • Any kind of over-unity devices and systems
  • Automotive modifications
  • Devices designed to electrocute or shock another person
  • LEDs to mains
  • Phone jammers
  • Rail guns and high-energy projectile devices
  • Transformer-less power supplies
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Automotive modifications of any kind are strictly forbidden. Therefore, this thread will be closed.

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You might find answers to your questions in one of these forums:


Another good forum that shares many of the same membership is http://www.electro-tech-online.com/ . Good luck.
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