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It's a snap: This magnetic light switch installs in no time

The $40 magnetic Switchmate controller snaps over existing light switches so you don't even have to break out your toolkit during installation.

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meganwollertonportraits0719-23a

Megan Wollerton

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1 of 7 Chris Monroe/CNET

Bluetooth-enabled light switch Switchmate costs $40.

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2 of 7 Chris Monroe/CNET

It fits over existing toggle or rocker switches (you have to specify the model when you purchase) thanks to strong built-in magnets.

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3 of 7 Chris Monroe/CNET

You can control Switchmate by pressing the center button on the switch itself or by using the related Android or iPhone app.

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4 of 7 Chris Monroe/CNET

A simple mechanical process on the back of Switchmate turns the light switch either on or off.

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It's powered by two AA batteries.

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It doesn't have dimming functionality.

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Switchmate units are too big to install side-by-side on 2-gang (or more) switch plates.

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