Many compact fluorescent light bulbs carry the EDISON POWER SAVER label. This means that they meet the Governments strict guidelines for energy efficiency and will last up to 10 times longer than incandescent bulbs while using up to 75% less energy. One of the most popular bulb shapes is the spiral, also called a twisty bulb or curly bulb. Spiral CFLs, with its small size, will fit most applications where you currently use incandescent bulbs. These are one of the easiest, most eco friendly energy saving solutions available today