LetsEndorse Light that is powered by Gravity

Product Description

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.

Grab your lamp, you've pulled: Brits punt life-saving gravity-powered light • The Register

Gravity-powered lamp scoops £150k award

Heath/Zenith HZ-4132-BK 150-Degree Bayside Mission Style Motion Sensing Decorative Security Lantern, Black, Bulb Not Included - Wall Porch Lights

GravityLight: lighting for developing countries.

S SHUN CAN DA Led Magnetic Machine Work Light IP65 Water Proof Flexible Gooseneck lamp 900 Lumens 120 Volt for Lathe Milling Drill Press Indus

Duo create GravityLight: Lamp that runs off of gravity (w/ video)

GravityLight: lighting for developing countries.

✔TRUE SECURITY LIGHTING: It can provide all night long lighting to reduce the occurrence of theft to a minimum whenever you are at home or not and get

eLEDing Solar Lights Outdoor Super Bright 56 LED Solar Powered Motion Sensor Security Wall Lights wi…See more eLEDing Solar Lights Outdoor Super

GravityLight: lighting for developing countries.

Secure Home 1-Light 10.83-in Black Motion Sensor Outdoor Wall Light at

GravityLight, a lamp that generates energy using the force of gravity

Globe Electric HZ-5411-WH Heavy Duty Motion Sensor Security Light, White, Bulb Not Included - Flood Lighting