I have came across with this project called GRAVITY LIGHT for developing countries- Infact this is founding campaign for developing and 14 days left. It is a total clever invention- design for a good cause. I will be caughting all the information from the following website for your interest.
'GravityLight is a revolutionary new approach to storing energy and creating illumination. It takes only 3 seconds to lift the weight which powers GravityLight, creating 30 minutes of light on its descent. For free.'
Can it charge my mobile or ipad?
No. Please visit the deciwatt page for a discussion on this subject.
How long does the GravityLight work for per lift?
The duration and power level/brightness are adjustable between just over 30 minutes and about 18 minutes (depending on what the bag is filled with). The light output on the video is generally at the higher power level.
How much light does GravityLight put out?
GravityLight is designed to be a replacement for a kerosene lamp. GravityLight's output is better than a kerosene lamp.
I can help with your trial, how should I get in touch?
Please email [email protected] with your details and a description of how you may be able to help. We are very keen to hear from all those interested to help with the trial, wherever there is a need. Please bear with us and will be in touch as soon as things calm down a little to discuss / arrange.'
do visit the website and support the campaign.