Solar powered ovens harness UV radiation from the sun and convert it to heat. The possible applications and limitations seem obvious, but many are surprised that even simple systems may boil / or pasteurize water. In sunny areas, you have the ability for long-term cooking or snow melting  without the need for fuel supply. This is an incredible feature for those in remote areas where fuel is limited /or cost prohibitive. Of course solar cooker performance is limited by weather, latitude, and seasonal variations but may be enhanced by altitude where there is greater UV radiation.

Please check out this video:

Solar cooking in Africa- A remarkable Technology Transfer http://www.youtube.com/watch?v=xZWIpKRuur0

LED stands for light emitting diode. LED bulbs consume 76% less power than super bright bulbs that are normally used. They last an average of 25,000 hours and use as little as 4.8 watts of electricity per set of 50 lights. Incandescent 50 light sets use 20.4 watts. In addition to saving your money in electricity and replacement lights, LED bulbs are much brighter and more colorful than traditional bulbs.

Make the switch to decorating with LED lights, you will be happy that you did!