This self-ballasted, fluorescent spiral bulb uses a mini T2 spiral bulb that's designed to fit in most lamps. Using just 18 watts, this spiral bulb produces a soft, white light at 2,700 Kelvin. Nondimmable spiral bulb features a medium base and produces 1,140 lumens for 12,000 hours. 120-volt spiral bulb is perfect for lighting areas where harsh, white light is not desired. Energy Star qualified and RoHS compliant.