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Deciwatt | GravityLight
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deciwatt.org
light
gravity
lighting
shared by
John Pearce
on 13 Apr 14
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John Pearce
on 13 Apr 14
"GravityLight™ is an innovative device that generates light from gravity. It takes only 3 seconds to lift the weight that powers GravityLight creating 25 minutes of light on its descent. "
"GravityLight™ is an innovative device that generates light from gravity. It takes only 3 seconds to lift the weight that powers GravityLight creating 25 minutes of light on its descent. "
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