They use standard size light bulbs. If you are purchasing from outside the Domestic U.
Please check my other listings for more Antique and Vintage Chandeliers, ceiling Fixtures and Sconces. The item "Antique Pair Cast Iron Sconces Vintage Globe Shades 1920s Gothic" is in sale since Friday, July 5, 2019. This item is in the category "Antiques\Architectural & Garden\Chandeliers, Sconces & Lighting Fixtures". The seller is "dale1175" and is located in Kossuth, Pennsylvania. This item can be shipped to United States.