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The GravityLight Foundation
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Blog Source (Do NOT delete)
Assembly & Sales Start in Kenya!
Dec 19, 2016 Caroline Angus 4 Comments
Dec 19, 2016 Caroline Angus 4 Comments
Assembly & Sales Start in Kenya!
Dec 19, 2016 Caroline Angus 4 Comments
Dec 19, 2016 Caroline Angus 4 Comments

GravityLight assembly is underway and sales have starting in Kenya, hear from some of our first customers...

Dec 19, 2016 Caroline Angus 4 Comments
Dec 19, 2016 Caroline Angus 4 Comments
GravityLight Research Across Kenya
Nov 8, 2016 Ruth Turner 1 Comment
Nov 8, 2016 Ruth Turner 1 Comment
GravityLight Research Across Kenya
Nov 8, 2016 Ruth Turner 1 Comment
Nov 8, 2016 Ruth Turner 1 Comment

Introducing GravityLight to 50 different locations across Kenya, gives us a great opportunity to find out more about GravityLight's appeal, potential impact and refine our route to market strategy.

We're excited to announce the support of Comic Relief and The DOEN Foundation in conducting this research across the next 12 months.

Nov 8, 2016 Ruth Turner 1 Comment
Nov 8, 2016 Ruth Turner 1 Comment
Oct 22, 2016 Caroline Angus
Oct 22, 2016 Caroline Angus
Introducing GravityLight in Kenya!
Oct 22, 2016 Caroline Angus
Oct 22, 2016 Caroline Angus

On Monday 24th October, GravityLight will be introduced into Kenya - starting a 50 night roadshow tour across the country and in depth consumer research and impact measurement.

Why a roadshow? Find out more...

Oct 22, 2016 Caroline Angus
Oct 22, 2016 Caroline Angus
SatLight Development
Sep 22, 2016 Aimee Coghill 6 Comments
Sep 22, 2016 Aimee Coghill 6 Comments
SatLight Development
Sep 22, 2016 Aimee Coghill 6 Comments
Sep 22, 2016 Aimee Coghill 6 Comments

SatLights connect to the main GravityLight unit, transforming it from a single ambient light to offer multiple points of light, spreading light around a room or home. These can be hung high for room lighting or lower for a more focused task light. But how and why have they developed?

Sep 22, 2016 Aimee Coghill 6 Comments
Sep 22, 2016 Aimee Coghill 6 Comments
On track and performing well: The GravityLight ‘Pulley System Build’
Jul 15, 2016 Fadi Dada 9 Comments
Jul 15, 2016 Fadi Dada 9 Comments
On track and performing well: The GravityLight ‘Pulley System Build’
Jul 15, 2016 Fadi Dada 9 Comments
Jul 15, 2016 Fadi Dada 9 Comments

The pulley has preformed as our engineers anticipated, completely controlling the bead cord throughout the entirety of the bag ‘lift’ and ‘drop’ – leaving no potential for the cord to get itself into a tangle. 

Jul 15, 2016 Fadi Dada 9 Comments
Jul 15, 2016 Fadi Dada 9 Comments
Jul 15, 2016 Fadi Dada 4 Comments
Jul 15, 2016 Fadi Dada 4 Comments
Our Trip to Kenya: Part 3 - What did we learn?
Jul 15, 2016 Fadi Dada 4 Comments
Jul 15, 2016 Fadi Dada 4 Comments

The benefits of GravityLight are clear - it is independent of batteries, doesn’t rely on the weather, it doesn’t need to be pre-charged outside at risk of theft, and it saves people money previously spent on kerosene lamps. However, designing a distribution strategy that clearly communicates this is a big job, especially with a technology that is new and unknown.

Jul 15, 2016 Fadi Dada 4 Comments
Jul 15, 2016 Fadi Dada 4 Comments
Jun 22, 2016 GravityLight, Kenya, Haller Foundation, Follow up visit Caroline Angus Comment
Jun 22, 2016 GravityLight, Kenya, Haller Foundation, Follow up visit Caroline Angus Comment
Our Trip to Kenya: Part 2 - Follow up visit Halima Mumba
Jun 22, 2016 GravityLight, Kenya, Haller Foundation, Follow up visit Caroline Angus Comment
Jun 22, 2016 GravityLight, Kenya, Haller Foundation, Follow up visit Caroline Angus Comment

Caroline has been busy gathering feedback from the off-grid families that have been set up with GravityLight, gaining valuable insights on their experiences with using it. Last weekend we revisited Halima Mumba and her family to see how they were getting on with their GravityLight.

Jun 22, 2016 GravityLight, Kenya, Haller Foundation, Follow up visit Caroline Angus Comment
Jun 22, 2016 GravityLight, Kenya, Haller Foundation, Follow up visit Caroline Angus Comment
Jun 6, 2016 GravityLight, Sustainable development, GL02, Off-grid, Lighting, Gravity, Trials, Kenya Caroline Angus 2 Comments
Jun 6, 2016 GravityLight, Sustainable development, GL02, Off-grid, Lighting, Gravity, Trials, Kenya Caroline Angus 2 Comments
Our Trip to Kenya: Part 1 - Home Trials
Jun 6, 2016 GravityLight, Sustainable development, GL02, Off-grid, Lighting, Gravity, Trials, Kenya Caroline Angus 2 Comments
Jun 6, 2016 GravityLight, Sustainable development, GL02, Off-grid, Lighting, Gravity, Trials, Kenya Caroline Angus 2 Comments

A little over a week ago, Caroline returned to Kenya to connect with several organisations who are trialling samples of GravityLight with sales agents and off-grid families. This weekly blog will provide you with the latest updates on the trip.

Jun 6, 2016 GravityLight, Sustainable development, GL02, Off-grid, Lighting, Gravity, Trials, Kenya Caroline Angus 2 Comments
Jun 6, 2016 GravityLight, Sustainable development, GL02, Off-grid, Lighting, Gravity, Trials, Kenya Caroline Angus 2 Comments
Bead Cord Update
May 23, 2016 Aimee Coghill Comment
May 23, 2016 Aimee Coghill Comment
Bead Cord Update
May 23, 2016 Aimee Coghill Comment
May 23, 2016 Aimee Coghill Comment

GravityLight has been put through rigorous testing over the past few months, both in our workshop and out in the field. As the tests progressed, they turned up an issue with the bead cord. Read more about the solutions we have found to combat these problems and the improvements we have consequently made to GravityLight.

May 23, 2016 Aimee Coghill Comment
May 23, 2016 Aimee Coghill Comment
GravityLight in Kenya: Focus groups with local communities
Apr 19, 2016 Fadi Dada 1 Comment
Apr 19, 2016 Fadi Dada 1 Comment
GravityLight in Kenya: Focus groups with local communities
Apr 19, 2016 Fadi Dada 1 Comment
Apr 19, 2016 Fadi Dada 1 Comment

See footage of our Kenya focus groups which have helped us gain insights on how to tailor our packaging, communications and understanding of under electrified households in Kenya. 

Apr 19, 2016 Fadi Dada 1 Comment
Apr 19, 2016 Fadi Dada 1 Comment
Testing: Packaging focus groups in Kenya
Feb 26, 2016 Testing, kenya Fadi Dada
Feb 26, 2016 Testing, kenya Fadi Dada
Testing: Packaging focus groups in Kenya
Feb 26, 2016 Testing, kenya Fadi Dada
Feb 26, 2016 Testing, kenya Fadi Dada

In December, Caroline took the first SLA prototype along with these packaging and instruction guides out to Kenya to gather feedback from 40 men and women living with little, if any electricity around Nairobi county.

Feb 26, 2016 Testing, kenya Fadi Dada
Feb 26, 2016 Testing, kenya Fadi Dada
CNC Machining, Injection Moulding and Modern Day Wizards
Dec 11, 2015 Fadi Dada Comment
Dec 11, 2015 Fadi Dada Comment
CNC Machining, Injection Moulding and Modern Day Wizards
Dec 11, 2015 Fadi Dada Comment
Dec 11, 2015 Fadi Dada Comment

Following meticulous testing of the CNC machined GL02 prototypes, we since commissioned injection moulds for each component and received the first batch to start accelerated life testing of these across Christmas and into 2016. 

Dec 11, 2015 Fadi Dada Comment
Dec 11, 2015 Fadi Dada Comment
GravityLight at AidEx 2015!
Nov 26, 2015 Fadi Dada Comment
Nov 26, 2015 Fadi Dada Comment
GravityLight at AidEx 2015!
Nov 26, 2015 Fadi Dada Comment
Nov 26, 2015 Fadi Dada Comment

GravityLight and our new SatLights were demonstrated to the international aid and development community at Aidex in Brussels.

Nov 26, 2015 Fadi Dada Comment
Nov 26, 2015 Fadi Dada Comment
An Update from the Workshop: Accelerated Life Testing
Oct 29, 2015 Technical Development, Research R&D;, Testing, Workshop Fadi Dada Comment
Oct 29, 2015 Technical Development, Research R&D;, Testing, Workshop Fadi Dada Comment
An Update from the Workshop: Accelerated Life Testing
Oct 29, 2015 Technical Development, Research R&D;, Testing, Workshop Fadi Dada Comment
Oct 29, 2015 Technical Development, Research R&D;, Testing, Workshop Fadi Dada Comment

With the arrival of new prototypes of the GL02 design, we are testing and assessing their durability and performance over time. Having developed a bespoke Accelerated Life Testing rig,  we’re able to condense one year of use - four hours times by 365 days – into two months of non-stop running.

Oct 29, 2015 Technical Development, Research R&D;, Testing, Workshop Fadi Dada Comment
Oct 29, 2015 Technical Development, Research R&D;, Testing, Workshop Fadi Dada Comment
GL02 R&D: Brighter & Bluer?
Jul 13, 2015 Technical Development R&D;, LEDs, Rob's Blog, GL-2 Jim Reeves
Jul 13, 2015 Technical Development R&D;, LEDs, Rob's Blog, GL-2 Jim Reeves
GL02 R&D;: Brighter & Bluer?
Jul 13, 2015 Technical Development R&D;, LEDs, Rob's Blog, GL-2 Jim Reeves
Jul 13, 2015 Technical Development R&D;, LEDs, Rob's Blog, GL-2 Jim Reeves

LED testing and selection has formed a large part of our recent development work. When trying to select GravityLight’s LED, there were a number of physical properties that were important to consider. 

Jul 13, 2015 Technical Development R&D;, LEDs, Rob's Blog, GL-2 Jim Reeves
Jul 13, 2015 Technical Development R&D;, LEDs, Rob's Blog, GL-2 Jim Reeves
Improving GravityLight
Mar 20, 2014 Technical Development Jim Reeves
Mar 20, 2014 Technical Development Jim Reeves
Improving GravityLight
Mar 20, 2014 Technical Development Jim Reeves
Mar 20, 2014 Technical Development Jim Reeves

Families who tested GL01 shared invaluable feedback on what needed improving before we could launch GravityLight. These insights have driven the development of GL02 over the past 18 months.

Mar 20, 2014 Technical Development Jim Reeves
Mar 20, 2014 Technical Development Jim Reeves
Global Field Trial
Sep 18, 2013 Research Jim Reeves
Sep 18, 2013 Research Jim Reeves
Global Field Trial
Sep 18, 2013 Research Jim Reeves
Sep 18, 2013 Research Jim Reeves

Working with organisations and individuals across 26 different countries; a breadth that would give us insights into a range of communities and climates, we were able to trial over 1300 GravityLight units with off-grid households to prove the concept and understand its potential.

Sep 18, 2013 Research Jim Reeves
Sep 18, 2013 Research Jim Reeves
GL01 Development
Feb 19, 2013 Technical Development Jim Reeves
Feb 19, 2013 Technical Development Jim Reeves
GL01 Development
Feb 19, 2013 Technical Development Jim Reeves
Feb 19, 2013 Technical Development Jim Reeves

Not only did the crowd-funding dramatically change the scale of our intended production run, it also gave us the opportunity to further refine the product before sending to crowdfunders and testing around the world.

Feb 19, 2013 Technical Development Jim Reeves
Feb 19, 2013 Technical Development Jim Reeves
Indiegogo Campaign
Feb 19, 2013 Fundraising Jim Reeves
Feb 19, 2013 Fundraising Jim Reeves
Indiegogo Campaign
Feb 19, 2013 Fundraising Jim Reeves
Feb 19, 2013 Fundraising Jim Reeves

In November 2012, with a working prototype in hand, the next step was raising funds to product 1000 units to test the GravityLight concept with households reliant on kerosene for light. Martin and Jim looked to the crowd for support...

Feb 19, 2013 Fundraising Jim Reeves
Feb 19, 2013 Fundraising Jim Reeves
How it all started.
Nov 19, 2012 Technical Development Jim Reeves
Nov 19, 2012 Technical Development Jim Reeves
How it all started.
Nov 19, 2012 Technical Development Jim Reeves
Nov 19, 2012 Technical Development Jim Reeves

In 2009, therefore, an award-winning design consultancy was approached by SolarAid, a UK charity with a mission to eradicate kerosene lamps. The team at SolarAid wanted to develop an extremely low-cost solar light, in order to reach off-grid families living on less than $3 a day. 

Designers Martin Riddiford and Jim Reeves took on the challenge

Nov 19, 2012 Technical Development Jim Reeves
Nov 19, 2012 Technical Development Jim Reeves