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Old 12-10-2010, 12:41 PM   #5
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Your problem is most likely related to circuit resistance; the OEM setup has much more resistance in the circuits due to the incandescent bulb. The reason LED’s are so bright is because they have very low internal resistance, which is also why they do not get hot. Removing the resistance when replacing the bulb with an LED often results in all kinds of issues because the circuit does not see the resistance it expects (turn signals or brake lights that don't work, etc.), including some lights being intensely bright. Adding a resistor of the correct to the circuit will improve the situation, but then the outcome is no different than having left the original bulb in there in the first place............

I’ve never understood why people want to replace functioning incandescent bulbs with LED’s, particularly when they end up rewiring half the car so the can……..
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