In November 2012, with a working prototype in hand, the next step was raising funds to product 1000 units to test the GravityLight concept with households reliant on kerosene for light. Martin and Jim looked to the crowd for support...
In November 2012, with a working prototype in hand, the next step was raising funds to product 1000 units to test the GravityLight concept with households reliant on kerosene for light. Martin and Jim looked to the crowd for support...