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1 comment on youtube.com/embed/3ouuEwOQSkc


This is #CoolAsShit .. this #LED lighting system is powered by a 30 pound bag of rocks. All you need to do is hoist the bag to the top with a tug, and the slow decent over 20 minutes is enough to power a 3 light system. The inventors developed this for 3rd world countries where over a billion people use toxin emitting #kerosene lamps . It's called the #GravityLight available on #Amazon .
&neo 2017-08-04 12:45:47