Bulb Base: E27. E27 spiral bulb is very suitable for the function of a bare bulb. These lamp holders are ideal for bare bulb features with Edison Screw Bulbs.
Vintage Lamp Socket E27 Bulb Base E27 Retro Ceiling Screw Light Lamp Holder 3/6x
Zevnico 6 Pcs E27 Lamp Holder, Vintage Black Lampholder with Lampshade External Fixing Ring Fitting, Bakelite 250V 4A, Edison Retro Style Screw E27 Light Bulb Socket, DIY Pendant Hanging Ceiling Light
Vintage Lamp Socket E27 Bulb Base E26 Retro Ceiling Screw Light Lamp Holder.'
Retro Ceiling Light E27 Metal Chandelier Lamp Living Room Bedroom Hallway Stairs
2PCS Vintage Pendant Light Fitting Retro Ceiling Rose E27 Suspension Lamp Holder
Vintage Industrial Pendant Light 1-3 Way Hanging Retro Ceiling Lamp E27 UK