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
Plastic lamp holder E27 (ES bulb holder) | eBay
E27 Lamp Holder ES Lamp Holder E27 Lampholder ES Lampholder | Shopee Malaysia
Lamp holder with external thread for 1 bulb E27 white - Cablematic
LH0758 E26/E27 medium lamp holder/socket with spring clip mounting and set screw connections