One will usually expect a lamp to rip power off the mains socket or even USB, but this is not the case for the Phone-Jack Powered lamp that rips power off any abandoned telephone socket.
Now you can conveniently say that there is a use for all abandoned telephone land line sockets in the home. The Phone-Jack Powered lamp has an RJ11 jack end which usurps power from the phone company instead of using electricity.
This question will be probably be asked, Is Phone-Jack Powered lamp legal? Well, I know it needs to be certified for use in the UK before plugging into the phone jack but am not sure it’s the same round the world. The price goes for a cheap sum of $4.73. Definitely worth it.