Will the "Gravity Light" be a future solar technology disrupter for the residential/small trade business market in the developing world?
LED, no battery, no solar panels. Current prototypes provide 30 minutes of light using a simple weighted bag.
GravityLight: lighting for developing countries. indiegogo.com
We have developed a realistic alternative to Kerosene lamps by harnessing the power of gravity. We need your help to make it happen.