This is a Toshiba CFL (Compact Fluorescent Lamp). I'm selling it because I've switched to LEDs. I've used it for over 10 years, so I think it's nearing the end of its lifespan. Please understand the condition before purchasing. Model number: EFA15EL/11-Z Brightness: Equivalent to a 60W incandescent bulb Base size: E26 Power consumption: 11W Warm white (2800K)