Lamp Sockets: How to Select the Right Socket For Your Lamp
Bulb Reference Chart | Bulb Base Types | LED Guide
Light Bulb Base Sizes | Light Bulb Socket Types More | Light bulb bases, Light bulb, Home electrical wiring
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