Leviton 19980-M Medium Base Interior Only, Shell Incandescent Lampholder, Pull Chain, Single Circuit, 0, 4 Pack : Amazon.ca: Industrial & Scientific
RXEAZIL UL Listed E26 Lamp Socket Replacement with Pull Chain Switch, E26/E27 Medium Base Interior, Repair Parts for Table, Floor Lamp, DIY Projects, 2 Packs : Amazon.ca: Tools & Home Improvement