Self-Contained Light Bulbs
The need spans the globe. More than 1 billion people in the world have no electricity at all. For most, that means no source of nighttime illumination. Some burn kerosene, dung, or other fuels, exposing themselves to potentially serious health effects. In Guinea, students travel miles to study at the airport—under light standards in the parking lot. And there are recreational and other uses.
Nokero claims that theirs is the world's only solar powered light bulb. Last week they introduced the model N200, just months after introducing their original model N100. The single integrated solar cell charges a nickel metal hydride battery that powers 4 LEDs for 2.5 hours at high brightness or 6 hours (3x longer than the N100) at higher brightness. The N200 retails at $20.
These bulbs bring sustainable cleantech at affordable cost and can alleviate one aspect of energy poverty. They can provide a benefit that will materially improve the lives of people in much of the world. These would also make a great addition to a shelter box or relief kit of any kind.