LED Question

forestgMember

Today I was helping wire up an LED third brake light. We could get it to light only when the regular brake lights were disconnected. After much discussion we concluded that we had done nothing wrong and it was just another mystery. Lo and behold we discovered that with the engine running and putting out 14 volts everything worked fine. The question is; would there be enough drop with the incandescent lamps on to pull the battery voltage (about 10 vdc) down enough to not trigger the leds?

10/3/095:49 PM

Original Post

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