Very interesting to see how they have improved the design since then with development of the GL-02: http://gravitylight.org/coming-soon-gl02/ http://gravitylig

Very interesting to see how they have improved the design since then with development of the GL-02: http://gravitylight.org/coming-soon-gl02/ http://gravitylight.org/coming-soon-gl02/ A more efficient LED, a power output port, and continuous operation, but most notably: a pulley system! Great how a simple machine can massively improve the impact of this product. Very cool.