Adamax Candelabra to Standard Base (E12 to E26) Light Bulb Adapter A1226E - The Home Depot
Light Socket Adapters - Etlin Daniels
Yi Lighting E17 to E26 Light Bulb Socket Base Adapter Converter - Converts Intermediate Fan Socket (E17) to Standard Medium Socket (E26/E27) (Pack of 1) : Amazon.ca: Tools & Home Improvement
Leviton 2-outlet Socket Adapter | Walmart Canada
E27 3 Prong Light Bulb Socket Adapter LED Accessories Converter for Garage | Walmart Canada
Leviton Attachment Screwbase, White | The Home Depot Canada