What are the Standard Light Bulb Base Socket Types and Sizes? | Mondoro
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Adamax Candelabra to Standard Base (E12 to E26) Light Bulb Adapter A1226E - The Home Depot
Light Socket Shade Rings,Aluminum Threaded Socket Ring for Medium Base E26 Sockets,Retaining Rings for Glass Lamp Shades/Light Fixtures (4-Pack White Color/For Thread Diameter 1-1/2 Inches) - - Amazon.com
Lamp Parts and Repair | Lamp Doctor: Socket Sizes and Bulb Shapes
What size light bulb base (United States) is in between candelabra and standard? - Quora
Lamp Sockets: How to Select the Right Socket For Your Lamp
E26 E27 Lamp Shade Collar Rings,JNXQWE Light Socket Ring,E26 E27 Lock Socket Replacement Adapter Ring with Inner Diameter of 1.57 Inches(40MM), Retainer Rings for Light Fixture (4, Black) - - Amazon.com