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What is the voltage of a red LED?

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What is the voltage of a red LED?
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3V (it  can be powered by two AA or AAA batteries )
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the voltage  of red LED is 2v

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1.5 v

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A red led requires 2v to light. LEDs requires different amounts of voltage ranging between 1.8 and 3.3 depending on the intensity and color of the Led.

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