Quantcast
Environmental News for a Healthier Planet and Life

Game-Changing Lamp Powered by Gravity Could Provide Light to Billions

Business
Game-Changing Lamp Powered by Gravity Could Provide Light to Billions
A bright future. GravityLight provides a clean, safe and affordable alternative to kerosene lamps, the designers said. GravityLight

Solar-powered electricity systems have often been touted as a solution for those living without reliable access to electricity, but another Earthly force is also readily available (and doesn't surrender to inclement weather or nightfall): Gravity.

That's the idea behind the GravityLight—a lamp that only requires the weight of a bag of sand or rocks to provide light. And for the 1.3 billion people in the world who live in "energy poverty," this simple yet genius idea could be a game changer.


For the majority of people without reliable access to electricity, dangerous and polluting kerosene is the primary source for light. But as designers Martin Riddiford and Jim Reeves said in their Indiegogo campaign, the GravityLight is "a low-cost [less than $10], safe and reliable alternative to the kerosene lamp, one that costs nothing to run, doesn't need batteries and pays for itself within weeks switching from kerosene."

It doesn't take much to provide a lot of power. Photo Credit: GravityLight

It basically works like a hand-cranked lantern. To activate the GravityLight's bright LED, the user attaches a weighted bag that's at least a 12 kg (about 26 lbs) to a beaded chain. The user then lifts the bag up by pulling on the chain.

When user releases the bag, the bag's slow descent to the floor (at about 1mm a second) helps power an internal DC generator that runs at thousands of rotations per minute. With these easy steps, the lamp can provide enough light for up to 30 minutes and can be repeated over and over as needed.

This simple pulley system allows the process to repeat indefinitely. Photo Credit: GravityLight

The project, which reached half of its $199,000 crowdsourcing goal in only 10 days and is nearing complete funding, is actually version 2.0 of the lamp. After the first version of the lamp, called GL01, was fully funded by a 2014 Indiegogo campaign, the makers tested it on more than 1,300 off-grid families around the globe. According to the designers, more than 90 percent of those who tried the lamp preferred it over a kerosene lamp.

This current version allegedly hammered out GL01's kinks and is also brighter, simpler, lasts longer and stays lit even while it's being charged, Gizmodo Australia reported.

Makers of the lamp are hoping to "empower those without electricity" and enable people to "break free from the economic, health and environmental hazards of kerosene lamps."

The goal of the crowdsourcing campaign is to set up an assembly line in Kenya as well as provide local jobs and skills.

Now that's a bright idea.

Check out the video below to learn more about the project:

A replica of a titanosaur. AIZAR RALDES / AFP via Getty Images

New fossils uncovered in Argentina may belong to one of the largest animals to have walked on Earth.

Read More Show Less

EcoWatch Daily Newsletter

Trump's Affordable Clean Energy rule eliminated a provision mandating that utilities move away from coal. VisionsofAmerica /Joe Sohm / Getty Images

A federal court on Tuesday struck down the Trump administration's rollback of the Obama-era Clean Power Plan regulating greenhouse gas emissions from power plants.

Read More Show Less

Trending

A wild mink in Utah was the first wild animal in the U.S. found with COVID-19. Peter Trimming via Wikipedia, CC BY-SA

By Jonathan Runstadler and Kaitlin Sawatzki

Over the course of the COVID-19 pandemic, researchers have found coronavirus infections in pet cats and dogs and in multiple zoo animals, including big cats and gorillas. These infections have even happened when staff were using personal protective equipment.

Read More Show Less
A mass methane release could begin an irreversible path to full land-ice melt. NurPhoto / Contributor / Getty Images

By Peter Giger

The speed and scale of the response to COVID-19 by governments, businesses and individuals seems to provide hope that we can react to the climate change crisis in a similarly decisive manner - but history tells us that humans do not react to slow-moving and distant threats.

Read More Show Less
Doug Emhoff, U.S. Vice President-elect Kamala Harris, Jill Biden and President-elect Joe Biden wave as they arrive on the East Front of the U.S. Capitol for the inauguration on Jan. 20, 2021 in Washington, DC. Joe Raedle / Getty Images

By John R. Platt

The period of the 45th presidency will go down as dark days for the United States — not just for the violent insurgency and impeachment that capped off Donald Trump's four years in office, but for every regressive action that came before.

Read More Show Less