LH0414 E26/E27 4kv pulse rated med base HID lamp holder/socket with captive screw and 12" leads
Bakelite E27 lamp holder kit with switch
Which is the hot and the neutral wire on a lamp socket/cord? - Quora
Rosvola WiFi E27 Bulb Socket, Support Voice Control Wireless Connection Delay Timing AC90-250V Universal Smart E27 Bulb Holder for Coffee House - Amazon.com
White Plain E27 Lampholder With Push Wire Terminals
E26 E27 Ceramic Light Socket, Helunsi Medium Base Porcelain Lamp Holder, Ceramic Light Bulb Socket with 12" Wire Lead, Medium Base Lampholder for Incandescent Led Light Bulbs Replacement (Pack of 4) -
Metal Lamp Holder 'Soren' chrome E27 - Kynda Light
GANRILAND 6 pcs Industrial Retro Lampholder Base E26 E27 Vintage Fitting 110V 220V Bulbs Lamp Holder For Pendant Ceiling Fixture - AliExpress