Quote:
Originally Posted by irondiezl3
but even if so why would the leds stay on th regular bulb didnt do that?
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Because the regular bulb, an incandescent style, has enough resistance that the minute amount of residual voltage left when the car is off, will NOT allow the bulb to light up. An LED bulb has virtually NO resistance, and therefore the minute voltage left behind will just slightly illuminate the LED. As for using a voltage meter to test, the voltage meter would present enough resistance, to effectively show zero volts.