Gravia ‘Gravity Lamp’ lasts 200 years, doesn’t have power cord

A Greener Gadget Award has been given to Clay Moulton, a Virginia Tech student, for his floor lamp powered entirely by gravity.

The Gravia, as it is called, has 10 LEDs and is powered by a weight which is manually raised once a day and slowly falls to the bottom as the day progresses. There is no power cord in sight. The entire column, measuring just over 4 feet high, gets a soft, diffuse glow as a result.

The best part? Moulton estimates that the Gravia can last about 200 years with daily use, and that its lifespan is only limited by the LEDs which will go out by then.

This is definitely one of the greenest gadgets around. Who doesn’t want a device that will power itself as long as you live? Although probably not the brightest lamp around, at a reasonable price the Gravia would make a welcome addition to many homes.