1 Pieces Socket Adapter ? Enlarger E26 Medium to E39 Mogul Base Male: Medium Base E26 Female: Mogul Base E39 Product Features Convert mogul base lamps to fit with medium based fixtures. Hard Fiber Sleeves, Porcelain Interior Rating 250 V 660 W Overall Height 3", Mogul Female Socket Height / Diameter : 1.82" / 1.79" Additional Details ------------------------------ Package quantity: 1