Solid state, dimmable LED (light emitting diode) A19 light bulb with medium base. Ideal for a wide variety of indoor applications around the house. Operating temperature: -4 deg (degrees) F (Fahrenheit) to 113 deg F. 3-year limited warranty. UL (Underwriter's Laboratories) listed for damp places. 220-foot beam spread. UL (Underwriter's Laboratories) approved for totally enclosed fixtures.