ALUCSET 3 Pack Medium Screw Base to Medium Base Light Bulb Socket Porcelain Extender, E26 E27 to E26 E27 Lamp Bulb Socket Extension Adapter, (Set of 3, Porcelain E26 Extender): Amazon.com: Tools
E27 Lamp Holder | White Bakelite E27 Lamp Holder
E27 Lamp Cap Torque Gauges with 6.35 Hexagon Joint
Double ferrule bakelite E27 lamp holder kit for lampshade
Aplstar E26 E27 Light Socket,16-Pack Black Edison Retro Pendant lamp Holder, E26 E27 Plastic Standard Screw-in Socket Maximum Wattage 250W Heat Resistant Up to 200℃ Fire Resistant - - Amazon.com
Bakelite E27 lamp holder kit
E27 cylindrical wood lamp holder for lampshade
E27 ES Black Lamp Holder, Bakelite Edison Screw, 2A 250V ac
Bronze Knuckle Wall mount Lampholder E27 fitting
Nickel Wing Nut Wall mount Lamp holder E27 fitting
Lamp Holder | Lamp Bases - 6pcs High Quality White Black 2a 110v 220v E14 E27 Lamp - Aliexpress
E27 Bakelite Lamp Holders
Xinyixing G24 to E27 E26 4-Pin LED Light Sockets Adapter, Light Bulb Socket, Bulb Base Adapter, Converters Lamp Holder (Pack of 1) - - Amazon.com
E14 E27 M10 Screw Light Bulb Lamp Holder Pendant Base Socket Light Accessories | eBay
LH0528 E26/E27 medium base lamp holder/socket with 1/8 IPS hickey and 9" leads