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Matching a red LED to a cr2012 battery to create a terminator light on sunglasses


Gary3

I am trying to create a red light behing a lense on sunglassed for a terminator project,

so I need to match the voltage from a red LED to a small battery possibly a cr2032,

because of it being near an eye, safety is really important,

would i neeed a resistor?

and what would be the best way to wire it?

 

thanks for your help

Gary

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