The D-Link Wi-Fi Smart Plug costs $50.

Read more about the D-Link Wi-Fi Smart Plug.

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The solid green LED means that the plug is successfully connected to your Wi-Fi network.

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From viewer's left to right: the Belkin WeMo Insight Switch, the D-Link Wi-Fi Smart Plug, and the Belkin WeMo Switch.

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Photo by: Colin West McDonald/CNET / Caption by:

The plug is designed to handle appliances with 100 to 125 volts of alternating current (VAC).

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For that reason, it works best with lamps or other small appliances.

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This plug can be attached to any three-prong outlet -- whether wall-mounted or located on a power strip.

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Photo by: Colin West McDonald/CNET / Caption by:

It measures 3.5 inches tall by 2.4 inches wide by 1.4 inches deep -- not huge, but not exactly small either.

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D-Link's Wi-Fi Smart Plug is compatible with the free Mydlink app (available under different names for Android and iOS devices).

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You can use the app to set schedules, monitor energy usage, or simply turn your appliance on and off remotely.

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The sticker on the back of the Smart Plug lists the Wi-Fi name, your PIN code, and the plug's model number -- all useful info for setup or troubleshooting.

Read more about the D-Link Wi-Fi Smart Plug.

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