The mini spiral compact fluorescent, self ballasted lamps are 120 volts, has a color temperature of 2700 degrees and a CRI of 80, The light bulb consumes 13 watts of power which is equivalent to a 60 watt incandescent light bulb, The bulb is 4, 06 inches long and has a diameter of 1, 65 inches, The light bulb has a Medium ED26 base, produces 900 lumens of light and has average life of 10,000 hours, SKU: HWRDL129