Suitable for use in commercial and residential applications, the Feit Electric 13-Watt (60W Replacement) Household CFL Light Bulbs (12-Pack) are designed to provide illumination for interior and exterior spaces. These bulbs offer soft white light at a light output of 900 lumens. Replacing any general-purpose light bulbs that use an E26 standard medium base, this twelve-pack uses up to 78% less energy than an incandescent.