Gravity Light

GravityLight is a revolutionary new approach to storing energy and creating illumination. It takes only 3 seconds to lift the weight which powers GravityLight, creating 30 minutes of light on its descent. For free.

There are currently over 1.5 billion people in the World who have no reliable access to electricity. GravityLight is a lamp, by London-based design group deciwatt.org, that is powered by adding weight to a mesh bag that hangs below the device. As gravity slowly causes the weight to descend, the lamps generates 30 minutes worth of light. The device is recharged by simply returning the weight to its original position, starting the process anew. The light can also be adapted to power other electronics such as radios and battery chargers. GravityLight itself has no batteries to run out, replace or dispose of, creating a completely clean and green alternative to lighting.