Leviton 9880 Medium Base, Two-Piece, Keyless, Incandescent, Unglazed Porcelain Lampholder, Surface Mount Low, Single Circuit, Back Wired, White Pack of 1 - Medium Light Socket - Amazon.com
Amazon.com: Tgoon E27 Wall Light Base, Modern Smooth Surface E27 Wall Lamp Base for Home(White) : Tools & Home Improvement
E26-E27 Surface Mount Socket - Sockets - LEDLight
Leviton 600-Watt 250-Volt White Outlet Box Lampholder R50-49875-000 - The Home Depot
Vintage Retro Ceiling Yellow Brass Semi-Flush Mount Light E27 – LEDSone UK Ltd
E27 Screw Ceramic Mouth Flat Lamp Holder - Led Compatible, Large Base Paperback Design For Surface Mounted Ceiling Lighting - Temu
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Vintage Lamp holder Ceiling Light Flush Mount Fitting E27 Wall Ceiling Lamp UK | eBay
YOUTHINK Modern Track Lighting Fixtures, Flush Mount Ceiling Track Light Holder 2 Light Rotating Adjustable Lampholder for E27 Bulb LED Bulbs for Kitchen Bedroom Living Room Hallway - Amazon.com
SAA E27 European Porcelain Lamp Socket - China Porcelain Lampholder, Ceramic Lamp Socket | Made-in-China.com