GravityLight is a “gravity-powered lamp” designed by Deciwatt. It is used in “developing or third-world nations, as a replacement for kerosene lamps” and was named “one of The 25 Best Inventions of the Year 2013 by Time Magazine.”
GravityLight is a “gravity-powered lamp” designed by Deciwatt. It is used in “developing or third-world nations, as a replacement for kerosene lamps” and was named “one of The 25 Best Inventions of the Year 2013 by Time Magazine.”