Image may be NSFW.
Clik here to view.
![]()
Clik here to view.
Deciwatt GravityLight
GravityLight
By taking advantage of an immutable force, the GravityLight may be the most reliable electric light source of all. A person simply lifts a 22-pound bag of ballast up to the base of the device; the weight falls over a period of 30 minutes, pulling a strap that spins gears and drives a motor, which continuously powers an LED. Peripheral LEDs can be attached to focus light on certain spots. DeciWatt is field-testing units to replace kerosene lamps in developing countries and plans to sell them there for $10 next year.
Image may be NSFW.
Clik here to view.![]()
Clik here to view.
Array
Clik here to view.
| Image may be NSFW. Clik here to view.  Image may be NSFW.Clik here to view.  Image may be NSFW.Clik here to view.  Image may be NSFW.Clik here to view.  Image may be NSFW.Clik here to view.  |
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Image may be NSFW.Clik here to view.
