Transparent House isn’t providing directions or even saying if they are selling these, but the idea’s simple enough I imagine anyone could make this work with a little bit of elbow grease.
The $139 price tag is rather steep IMHO, but then again good ideas are hard to come by, and when they do, they are rarely cheap.
Designed by Jethro Macey the Coin Lamp requires you to insert a coin before it lights up. It will only light up whenever you insert coins inside, and the lamp itself has been specially set to a pre-determined time by an internal mechanism.
A sensor detects how it’s been positioned and operates the light accordingly. I would like to have a desk lamp like this to read focused and undisturbed in the middle of the night, away from the heat durring the day.