GravityLight – lighting a billion lives: Jim Reeves at TEDxWarwick 2014

Jim Reeves is a London based designer and along with Martin Riddiford he has spent four years developing a light that would provide a viable alternative to kerosene and sun-powered lamps for developing nations. GravityLightâ„¢ works by harnessing the power of weight and gravity, it is easy to run, low-energy, battery free and also, cheaper than solar lighting. GravityLight’s creators are looking to test and begin mass-production on this innovative design, in the hopes of brightening peoples’ lives when it gets dark.