The phrase "socket adapter" is correct and usable in written English.
It can be used when referring to a device that allows different types of sockets to connect or adapt to each other.
Example: "To connect the new device to the existing power supply, you will need a socket adapter."
Alternatives: "plug adapter" or "socket converter."
Things students say they wish they had taken include a sandwich toaster, extension lead, socket adapter, a door wedge and Blu-Tack™ or pins for putting up posters.
There's also a 12v socket adapter with an iPod cable included for $24.99, if you need a cable to leave in your car.
The basic concept is to provide a metering device in the form of a socket adapter or multi-contact plug, which connects to a wireless network to transfer the metering data to a data storage.
There's three different levels of the product available, a plain socket adapter for $19.99, a house adapter that you can charge two devices with (and it has the 12v adapter as) well for $44.99.
If you have a porch light that's shielded from the elements, you may be able to insert a socket adapter that places a power socket between the fixture and the lamp.
There are lamps wrapped in white cotton rope, and a light fixture made from a clutch of ceiling socket adapters.
The Internet-connected v-Hub is what ties the cloud to the socket adapters to the iPhone and web apps, which plugs into your home router via Ethernet and can pair with up to 16 individual sockets.
On a recent trip abroad, Babbage finally realised that a single charger (plus an appropriate power-socket adapter) can be used to top up the batteries in his tablet and smartphone as well as a bunch of foreign phones.
Make sure the power socket your adapter is connected to is turned on.
Hyundai has taken that a step further on its Korean market models, installing, in place of the old push-in lighter, a 12-volt socket to USB adapter.
This ensures that customers don't cannibalize an existing wall power socket with the adapter, which means they can connect a wider range of power-hungry devices than competing solutions while still maintaining the highest performance.
