GravityLight gets brighter, tougher and easier to use
Price: $ 31.99
4.8(663)
The GravityLight was designed to replace the use of kerosene lamps in the developing world. It uses a weight to drive a gear-train and generate electricity from the kinetic energy created. Now, a new version of this safe, cheap and convenient lighting solution has been created.
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Lighting for a billion people. The Gravity Light could really help people in third world countries. : r/videos
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