POLY POOL - PP0485.2X wall lamp holder E27 - lamp holder with slanted base - Lamp holder E27 with spring clamps and brass contacts - Plastic lamp holder Made in Italy :
E27 Bulb Socket, 6 Pack Ceramic Edison Screw E27 Lamp Holder for LED and Standard Bulbs : Amazon.de: Lighting
Plastic Lamp Holder E27 Unthreaded Black - Lamp Accessories
Gobesty Pack of 6 E27 Lamp Holder with Switch without Cable, E27 EU Socket Lamp Holder, 360° Adjustable EU Plug for Garage Lamp, Wall Light, Kitchen Lamp (Bulb Not Included) : Amazon.de: Lighting
3 x E27 Porcelain Ceramic Lamp holder For Heat Bulb 60W Plain Lamp holder Socket | eBay
E27 Lamp Holder without Cable Lamp Socket E27 with Switch AC 100-240V Max 80W E27 Adapter Converter Heat Resistant -180°C for Mobile Kitchen Lamp/Garage Lamp, Pack of 4 (without Bulb) : Amazon.de: