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Wiring/electronics/LED help needed please!


Tricky-Ricky

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Just run into a problem on my bike protect, the bike has to run a + earth system due to the nature oof the electronic ignition system fitted, but in my wisdom i bought a really nice LED rear light......now as we all know LEDs are current flow direction dependent, so i need to try and come up with some way of integrating both the brake light which would be relatively simple to use a separate circuit .

 

But i also need to be able to run the the headlight on the + earth system (or do i?) and the rear on a - earth, and all running off a single ignition switch, now i guess it could be done with relays, but i am also very limited on space for things like that, as i have a small battery box that also contains all the coils ans electronics, and theres room for little else...so if any of you guys have an idea or solution i would be grateful

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