E-Simpo B22 to E26 E27 Light Socket Adapter, UK AU India Bayonet Lamp Base to Edison Screw E26 E27 Bulb Holder Converter Adapter CE Rohs (4) - Amazon.com
Bayonet Cap Lamp Holder - Ray Grahams DIY Store
BC | B22 | Bayonet Cap Brass Switched Lampholder 1/2" Entry
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BAYONET LAMP HOLDER STANDARD B22 BULB CAP SWITCHED LIGHT BULB HOLDER BLACK/WHITE | eBay
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E-Simpo B22 to E26 E27 Light Socket Adapter, UK AU India Bayonet Lamp Base to Edison Screw E26 E27 Bulb Holder Converter Adapter CE Rohs (4) - Amazon.com