GravityLight is a lamp that is designed to hang from suitable fixtures in a house or dwelling. It uses a bag that can be filled with heavy items and winched up. As the bag descends it drives a generator through a gearbox which provides direct electrical power for a single LED. Additional SatLight lamps can be connected to the main GravityLight unit to extend lighting. Multiple Satlights can be daisychained together (recommended max of 4).
Self-powered, the GravityLight uses gravity to create clean energy
Includes 2 LED lamps with lamp brightness of up to 15 lumens each
Hang in any non-electrified space for instant Lighting
No batteries, no charging, nothing else other than the ability to lift 12kg
Doesn't need batteries or sunlight and costs nothing to run.
20 minutes of light on one descent
Fill the provided bag with up to 12kg of weight. As the bag descends it drives a generator through a gearbox, which provides direct electrical power for 15 lumens of light for over 20 minutes.
Easy to use
Lifting the weight that powers GravityLight takes little time and effort.
2 lamps included
Additional lamps can be connected to the main GravityLight unit to extend lighting (recommended maximum of 4).