In our trials, over 90% of the off-grid households who tried GravityLight said they would use it instead of a kerosene lamp.
They also shared invaluable feedback on what needed improving before we could launch GravityLight.
The key insights we learned about GL01 were:
1. Women and children struggled to lift the weight to its full height– we needed to make GravityLight easier to use, for all members of the family.
Women and children were struggling to raise the weight high enough off the ground.
2. People wanted a brighter light – we needed to make efficiency gains in the design and choice of components.
3. Children used the bag as a swing, causing breakages – GravityLight needed to be even more robust and protect against misuse.
4. The product needed to last longer – points of failure had to be addressed and accelerated life testing carried out to ensure the next model could offer at least a 1 year warranty.
These insights have been driving the development of GL02 since.