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I am planning on installing some LED light strips in a closet full of shelves. I am using an A/C adapter (wall wart, brick, what have you) connected to the strip, which plugs into an outlet. I plan to have the outlet controlled by a light switch to provide on/off to the light strip.

Is it possible to use a motion sensor as the light switch?

Or, is there an easier way to get the LED lights to turn on automatically?

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Is it possible to use a motion sensor as the light switch?

Yes. You can buy standalone sensors designed to switch lights on and off. There are both plug-in switches and ones that you hard-wire to your light fitting.

is there an easier way to get the LED lights to turn on automatically?

It depends. You could use a microswitch on the closet door.

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Yes. They make 12V motion sensors. They are actually cheaper than 120V sensors because the sensors proper run on low voltage DC, and thus do not need a mains power supply within the sensor. That is the way to do it, if you don't mind the vampire load of the 12V power supply being on all the time.

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