The Satco S3279 Candelabra Base Bulbs are 40W, 120V decorative bulbs designed for indoor use. These warm white bulbs feature a frosted flame tip, adding a contemporary style to any room. Made of glass, these bulbs have a screw connector and a clear finish, with an energy-efficient rating as they are Energy Star certified. With a lifespan of 1.4 years, these bulbs provide a warm and cozy lighting ambiance for your space.