Your choice of lighting in your home matters. Lighting represents a significant portion of the electrical energy used within your home. "Bug Yellow" compact fluorescents repels bugs. Great for porch light fixtures as an aid in keeping pests from gathering near entry way doors. Mix it with other colored EarthBulbs for a real "festive" look. This 13-Watts EarthBulb CFL when compared to 60-Watts colored incandescent bulbs provides 75-percent energy savings. Savings over the long 10,000 average rated life eliminates 680-pounds of CO2 from being released into the air and provides $47 in electrical cost savings (at $0.10kwh). This compact fluorescent may be used indoors or outdoors in sheltered applications. Electronic ballast provides for instant on, no flicker starting. Medium screw base. About EarthTronics, the maker of the EarthBulb: EarthTronics develops products and technologies that address the planet"s demand for energy. They believe this demand creates not only challenges, but opportunities. From lighting to alternative energy products to medical equipment.EarthTroincs is not bound to specific products or technologies. They ARE committed to reducing the amount of energy their customers use. It"s good for your bottom line and it"s good for the planet. That commitment is even reflected in where EarthTronics has chosen to locate their company: in the Michigan Alternative and Renewable Energy Center (MAREC), a world-class research and development facility on the shores of Lake Michigan. At EarthTronics, efficiency meets innovation.