12 Pack E12 to E27 / E26 Adapter E12 Chandelier Socket to E27 / E26 Medium Socket Converter - - Amazon.com
E12 to E26/E27 Lamp Bulb Socket Adapter Converter
TORCHSTAR E12 to E26/E27 Adapter, Candelabra Screw (E12) Base Socket to Medium Screw (E26/E27 Edison Screw) Converter, Heat-resistant, No Fire Hazard, Pack of 6 - Walmart.com