Eiko's 105 Watt compact fluorescent light bulb replaces a 420 Watt incandescent equivalent for savings up to 80 percent in energy costs. Mercury containing products sold into the state of WA include an environmental handling charge of .25/each. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.