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10.1

Major VersionM

by Pete Prodoehl

Introduction

Using a resistor, a coin-cell battery, a transistor and a light-dependent-resistor, create a light circuit that turns on as it gets dark!

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Conclusion

Found often in solar garden lights that only turn on when it gets dark, this circuit is surprisingly simple. Now, you've made one yourself! Hooray!

Andy Wallus

Member since: 10/18/2018

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