According to Panasonic, maker of these fantastic bulbs, the initial cost of a compact fluorescent lamp (about $8) is usually higher than that of an incandescent bulb, but the cost is quickly recovered because compact fluorescent lamps (CFLs) use about 70-75% less energy. Here’s on quick calculation: By replacing a standard 60-watt incandescent bulb with a Panasonic Gen IV 14-watt CFL, you could save up to $46 on your electric bill over the lifetime of the bulb (about 10,000 hours). CFLs, of course, also generate about 70% less heat than standard incandescents, which can help reduce air conditioning costs. But you already know all that… Our tipster tells us that best thing about these bulbs is the quality of light. Instead of producing the harsh white light that so many florescents do, we have word that the Panasonics produce a much more natural, yellowish light. The company also offers and online savings calculator on their site, so you can add up the green you’ll be saving while doing your part for energy-efficiency. Thanks for the tip Chris Leonardo!