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Led lights 2 power supplies

  • 02-04-2018 06:07PM
    #1
    tomstud12
    Registered Users, Registered Users 2 Posts: 98 ✭✭


    Hello

    I currently have led lights under the feet power by the interior light so when door opens the led lights come on.

    But i now received a fuse cable which i would also like to use with a switch but also have my lights turn on when door come on.

    My question is how can i add these 2 together. Like if i add these 2 power sources together and when i turn on the switch will the fuse power not go the the interior lights and turn them on also?

    Thanks


Comments

  • #2
    TherapyBoy
    Moderators, Social & Fun Moderators Posts: 4,577 Mod ✭✭✭✭TherapyBoy


    Bring it to your local auto-electrician or car audio shop, they'll be able to sort it for you.

    Moderator: Non Drinkers Group & Grand Theft Auto



  • #3
    Sam Quentin
    Registered Users, Registered Users 2 Posts: 2,236 ✭✭✭Sam Quentin


    Yes it's a tricky one, probably need another switch with additional fuse!?


  • #4
    blackbox
    Registered Users, Registered Users 2 Posts: 4,940 ✭✭✭blackbox


    Sam Quentin wrote: »
    Yes it's a tricky one, probably need another switch with additional fuse!?

    You could use the existing switch to activate a relay on the new fused circuit.


  • #5
    tomstud12
    Registered Users, Registered Users 2 Posts: 98 ✭✭tomstud12


    I saw that a diode makes the current flow only one way could use one of them?


  • #6
    whizbang
    Registered Users, Registered Users 2 Posts: 2,023 ✭✭✭whizbang


    A diode would generally be the way, but you need to know how the leds are connected. However...

    The old school door switches would switch the ground wire, with the 12v to the lights always on.

    More recent systems use canbus, which means either 12v or ground is switched by the relevant control module.
    in this case you could trigger errors by adding additional loads.


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  • #7
    tomstud12
    Registered Users, Registered Users 2 Posts: 98 ✭✭tomstud12


    whizbang wrote: »
    A diode would generally be the way, but you need to know how the leds are connected. However...

    The old school door switches would switch the ground wire, with the 12v to the lights always on.

    More recent systems use canbus, which means either 12v or ground is switched by the relevant control module.
    in this case you could trigger errors by adding additional loads.

    I don't really know much about electricity in cars i followed a youtube video on how to connect foot led lights.

    I connected them to the positive and negetive for the light bulbs holes in the interior lights. So when ever power goes into them lights it goes down to the led lights. Or when i switch on the interior lights the led lights come on to.


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