Instant Light, No Batteries, No Running Costs
Combining kinetic and potential energy, GravityLight works by connecting an elevated weight — filled with rocks or sand — to a pulley system that slowly powers a generator as the weight falls to the ground.
GravityLight is an innovative device that generates power using the force of gravity from a weight. Made up of three parts, the light is hung above the ground giving the weight component a 6ft drop. To power the light the weight is lifted, and on release starts to fall slowly back down towards the ground. This movement powers a series of gears which rotate very slowly with high torque (force). The gear train running through the product turns this input into a high speed, low torque output that drives a power generator at thousands of rotations per minute. This output is used to power an LED light, and ancillary devices, providing off-grid communities with access to energy.