Leviton produces lamp holders for virtually every light source equipped with incandescent, fluorescent or CFL lamps. Lamp holders include incandescent medium base and specialty sizes and fluorescent lamp holders, in addition to a large line of porcelain lamp holders including pulse-rated mogul-base products and an extensive selection of devices for high-intensity lamps. A variety of types styles have been custom designed for any application. Features: Vinyl, phenolic interior and screw shell with a brass shell contact Incandescent medium base socket adapter with leads; one-piece Perfect for temporary lighting applications-not waterproof Molded into boots Not waterproof CSA and UL listed