2. Who invented the incandescent lamp? Historians Robert Friedel and Paul Israel list 22 inventors of incandescent lamps prior to Joseph Swan and Thomas Edison. They conclude that Edison's version in 1879 was able to outstrip the others because of a combination of three factors: an effective incandescent material, a higher vacuum than others were able to achieve (by use of the Sprengel pump) and a high resistance that made power distribution from a centralized source economically viable.wikipedia.com
3. The bulb Edison invented is going away. Gereports.com
4. If every American home replaced just one light with a light that's earned the ENERGY STAR, we would save enough energy to light 3 million homes for a year, save about $600 million in annual energy costs, and prevent 9 billion pounds of greenhouse gas emissions per year, equivalent to those from about 800,000 cars. Energystar.gov
5. New types of bulbs CFL contain small amounts of mercury and precaution should be used if they break and proper disposal is important to protect the environment. Halogen does not contain mercury but is more expensive and it is reported that they do not last as long as LED. Here is a link to an interesting article on LED lights and the cold weather that are currently being replaced and used in traffic lights. It is not that they are a bad idea; just some adjustments need to be made.
6. CFL (Compact Fluorescent Light Bulbs) use 75% less energy then the old standard incandescent.
7. Facts and myths about CFL can be found at this link from Consumerreports.org
8. A link to the safe disposal of Mercury Containing Light Bulbs for business and consumers. epa.gov/epawaste/hazard/wastetypes
9. Watt is now lumens? Lumens are a measure of how much light you get from a bulb. Watts measure the amount of energy a light bulb uses. How to calculate lumens per watt from ehow.com. The lumen out put should be shown on the box.
10.Have you started replacing your light bulbs as the old ones burn out? Here is a link to recommendations for disposal in our area for the “new” CFL light bulbs listed at Earth911.com you can add your own zip code to find a center near you.