GravityLight (NowLight)
Deciwatt
Solution Overview & Benefits
NowLight (GravityLight) turns your effort into electricity. A minute of pulling will generate up to 2 hours of light or enough power for a 15-minute phone call. NowLight can also be charged from USB power sources or using a solar panel (sold separately).
- Uniquely efficient manual generator - pull cord to create power
- Alternatively charge from USB or any 5V power source
- Six brightness settings from 5 to 160 lumens
- Up to 90 hours light on the 5 lumens setting
- Around 4.5 hours of light on the 160 lumens setting
- Charges mobile phones and other USB devices
History & Development
GravityLight has been replaced by NowLight
Designers Martin Riddiford and Jim Reeves determined that at that time batteries and photovoltaic panels were too expensive for an ultra low-cost solar lantern to be possible. They decided to look beyond solar and battery powered devices for another means of generating electricity.
Their search led to the insight that thanks to dramatic improvements in LED technology, it would be possible to create electric light by harnessing the energy potential of gravity.
After more than two years of experiments, Jim and Martin had created a working prototype and were ready to test the product in the real world.
A highly successful crowdfunding campaign provided the funding necessary for tooling, manufacture and distribution of 'GL01'. More than 6,000 generous supporters contributed just under $400,000.
Availability
- Publicly available: yes
- Countries where available: Worldwide
- Price range (USD): +100
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