It fits well with standard E27 screw bare bulbs and it's easy to install with M10 thread. The holder fits for standard E27 screw bulbs, and the bulb. Bulb Base Type: E27. 1 E27 Lamp Holder with Pull Chain(No Bulb).
E27 Vintage Industrial Lamp Light Bulb Holder Antique Retro Edison Screw Fitting
Vintage Industrial Lamp Light Bulb Holder Antique Retro Edison E27 Lamp Fitting
Vintage Industrial Lamp Light Bulb Holder Antique Retro Edison E27 Screw Fitting
Vintage Industrial Lamp Light Bulb Holder Antique Retro Edison Screw Fitting E27
Vintage Industrial Lamp Light Bulb Holder Antique Retro Edison E14/E27 Fitting
