Vintage Off/On Pull Chain Lamp Socket with Solid Metal Cast Shell, E26 Medium Base - royalLAMPSHADES
Amazon.com: Bahong Smart WiFi Light Socket,Smart Home Mini Socket,E26/E27 Lamp Bulb Adapter with APP Remote Control Timer,Wireless Remote Control Lamp Holder,Only Support 2.4GHz Network (1PC) : Industrial & Scientific
Leviton 600-Watt 250-Volt White Outlet Box Lampholder R50-49875-000 - The Home Depot