Amazon.com: UltraPro Porcelain Light Socket with Outlet and Pull Chain Light Fixture, Light Bulb Socket, Medium Base, Grounded Plug, Indoor Lighting, Mount on 3-1/4€ or 4€ Box, UL Listed, White, 18305,1-Pack :
Brand new ceiling mount light bulb socket with on /off pulling chain switch | eBay
Screw Base Light Bulb Socket w/ Pull Chain Switch Converter Outlets to 2 --us | eBay