ST19 LED (light emitting diode) featuring a traditional incandescent look and feel. Omni-directional light source with smooth dimming. Can be used in damp locations. UL (Underwriter's Laboratories) listed for totally enclosed fixtures. Operating temperature: -4 Deg (degrees) F (Fahrenheit) to +113 Deg F. CRI (color rendering index) 80. Lawful for sale in California.