Amazon.com: Emart Light Bulb Stand, E26 / E27 AC Socket Lamp Holder with Umbrella Holder, Photography Light Bulb Mount for Photo Video Studio - 2 Pack : Electronics
Fermaluce Metal 90° with threaded E27 lamp holder
E27 lamp holder wall or ceiling IP44
MOES WiFi Smart Lampholder|Lamp Holder Adapter Light Bulb Socket
STL file Nut for E27 lamp socket・Model to download and 3D print・Cults
Source Colshine lamp base E27 F519 porcelain E27 lamp holder, ceramic lamp socket E27 on m.alibaba.com
LH0891 Converts an E26/E27 medium base lamp holder/socket to a G9 lamp holder/socket