2pcs White Black 250V 4A E27 Light Bulb Base Plastic Full Screw Lamp Holder Pendant Socket Lampshade Ring for E27 Light Bulb|screw lamp holder|pendant socketbulb base - AliExpress
B&Q Black Edison screw cap (E27) Lampholder | DIY at B&Q
E27 ES White Lamp Holder, Plastic Edison Screw, 2A 250V ac
E27 to B22 Screw Base Socket Lamp Holder Light Bulb Converter Adapter at Rs 40/piece | लैंप होल्डर - Ascension Enterprises LLP, Jaipur | ID: 20441692991
Fermaluce Metal 90° with threaded E27 lamp holder
BC B22 To ES E27 Screw Light Bulb Lamp Adaptor Fitting Converter Holder Lamp Holder Converters|e27 to b22|b22 to e27light bulb adaptor - AliExpress
10pcs/lot E27 full threaded Lampholder base Adapter Base Socket Lamp Holder With 400mm Wire and M10 bracket Bulb Connector|socket lamp holder|lamp holdersocket lamp - AliExpress
E27 ES Black Lamp Holder, Plastic Edison Screw, 4A 250V ac