This thing looks great! Solar-powered lamps are often pretty corny-looking, and the ones for outdoors are all so plasticky. The Sun Jar is basically just a couple low-power LEDs in a jar, attached ...

A 55mm solar cell fits on top of the 63.5mm diameter PCB, which in turn fits perfectly in a standard Mason Jar with a collar lid. When in the light, the solar cell charges two 1.2V NiMH batteries.