The ubiquitous Avon saleswomen traveled first by foot, then horse and buggy, and eventually by car to sell cosmetics door to door. In the process, the company built a global business that now earns ...

Solar day lamps (SDL) are simple and cost-effective. A few examples of SDLs have been described in [1], [2] and [3]. An SDL without any energy storage element suffers from frequent changes in the ...

In our second partnership with One Acre Fund, we’ll be following David and Zipporah, smallholder farmers from Kenya, for a whole growing season. From planting to harvest, we will check in every month ...

When the sun goes down over large swathes of the developing world, the 1.3 billion people currently living without access to an electricity connection are plunged into darkness. According to figures ...

BAHAWALPUR, Pakistan, July 27 (Thomson Reuters Foundation) - A s the sun sets and darkness falls over a village outside Bahawalpur, Shama Bibi switches on her solar lantern and starts sewing clothes ...

“The lights are lightweight and easy to mount.” ...

Here is the simple solution to make an automatic solar powered led lamp. It automatically switches on two high power White LEDs in the evening and stays on for 6 hours using a 6 volt 4.5 Ah ...

If you fancy changing your desk lamp into a green one, then check out the Sunnan Solar Powered LED Desk Lamp from Ikea. The Sunnan Solar Powered LED Desk Lamp provides four hours of light on a full ...