How to Make a Fading Light Circuit

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Step 1: Parts

9 volt battery led and a capacitor

Step 2:

Step 3: Done

Power it up and remove one of the battery wires and it will fade off

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    5 Discussions

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    TheStJoe83

    3 years ago

    I think this needs more detailed instruction

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    BurgersBytes

    5 years ago on Introduction

    9 volts may kill most LED's instantly! Use a current resistor for .20 ma at the LED voltage.

    Resistance = Vin - Vled / .02

    Red and yellow LED's need only 1.5 to 2 volts. Bright LED's can use up to 3 volts.

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    kakashibatosi

    5 years ago

    one step short of a flashlight. a "breathe" effect would be more useful.