Video about harnessing the power of the sun to bring electricity to a poor community simply using soda bottles.
Isang Litrong Liwanag (A Liter of Light), is a sustainable lighting project which aims to bring the eco-friendly Solar Bottle Bulb to disprivileged communities nationwide. Designed and developed by students from the Massachusetts Institute of Technology (MIT), the Solar Bottle Bulb is based on the principles of Appropriate Technologies – a concept that provides simple and easily replicable technologies that address basic needs in developing communities.

Please consider helping this cause. See more from their website, http://isanglitrongliwanag.org/

What could be greener than just using a little tap water to power your alarm clock? This cool clock makes its own electricity from its electrolytic cells and the water electrons. One refill should power the clock for about 12 weeks, then all you need to do is fill it up again. It will remember the time so you don’t need to re-set it after each refill. The ergonomic design looks modern and svelte – it’s bigger than it looks in the picture though, at 6 ½ “ high. There is a choice of blue or gray. And you’ll have one less gadget to reset after a power outage too!

Currently on sale at $24.95 from Hammacher Schlemmer

For occasional welder this Neiko solar powered helmet is a great buy. Its auto darkening feature works near instantly and very effectively. It is easily adjustable for a good fit, is lightweight and sturdy and it meets all the ANSI standards for eye protection. The viewing window is large enough to give a good view of our work area and the whole helmet gives good coverage. The solar cell recharges the internal lithium battery for continuous function. The flames decal decoration is an added bonus.
Currently this helmet is offered at 70% off the recommended retail price at Amazon.com, costing $45.35, so it’s a great deal.

Kids love flashlights, but they often forget to switch them off. Buying batteries week after week gets expensive and is not great for the environment. This Lego flashlight is the perfect solution for Lego fans. It is hand cranked by rotating the arm, so the dynamo powers the flashlight with no need for batteries at all. It’s sturdy enough for younger kids and works well enough for adults to borrow in power outages!

It comes in various colors and there are also other Lego character versions, including a Police officer and a City construction man. This would make a great gift for any child who plays with Lego or who just enjoys gadgets.
Currently costs $ 20.83 from Amazon.com

And it helps you avoid sunburn too! This cool gadget indicates how much UV is about. The center panel changes color to match one of the four colors around the edge, telling you when the sun is strong enough to charge a solar device and when your skin needs protection at the same time. It’s small enough to clip onto a keyring and very portable. If you regularly use solar charging devices it could come in useful, allowing you to judge a good position and time of day to put things on charge. And it could save you from those deceptively mild beach days when you can burn without realizing it before it’s too late.

Costs $7.99 from ThinkGeek.com