DeepResource

Observing the world of renewable energy and sustainable living

GravityLight

Youtube: Published on Dec 4, 2012 – 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.

[indiegogo.com]

Advertisements

Single Post Navigation

Comments are closed.

%d bloggers like this: