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LEDs staying lit.

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JJsRYD

Joined: Jul 02 2009
Posts: 3


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Post Thu Jul 02, 2009 3:59 am

I have one of the Rigid 5mm LED dome light and 2 of the Tiny LED Modules : High brightness surface LEDs wired in. The problem that i am having is that 2 rows of the dome light LEDs are staying lit. Tho very dim, yet very noticeable when nite driving.

Is there a circuit that i can make to act as a "FILTER" to prevent this? I plan on adding more interior lighting in the near future and i dont want to be haunted by this problem.

Thanks in advance.

JJ

Vehicle info: 97 Monte Carlo
pgiordano

Joined: Nov 13 2008
Posts: 293


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Post Thu Jul 02, 2009 8:26 am

put a small resistor before the lights and it should be fine
JJsRYD

Joined: Jul 02 2009
Posts: 3


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Post Thu Jul 02, 2009 9:16 am

How small of a resistor and do i put it parallel or series?
EricCartman

Joined: Oct 24 2008
Posts: 96
Location: Oregon

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Post Thu Jul 02, 2009 10:45 am

Small resistor in series... Start with something like 10ohms and move up/down until it behaves the way you want. The closer to 0 you can get it, the better off you will be.

A small resistor in parallel is equivalently a short. icon_smile.gif If you are going in parallel, you want something BIG. 10K or higher. Depending on how your lighting system is setup, that could continually draw power...
JJsRYD

Joined: Jul 02 2009
Posts: 3


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Post Fri Jul 03, 2009 7:40 am

Thats true. I should have some resistors laying around.

Thanks man.
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