Double ferrule bakelite E27 lampholder kit with switch
360 Degrees Flexible Desk Lamp Holder E27 Base Light Socket Gooseneck Clip-On Cable with On Off Switch Plugs for Night Light Bulb Grow Lights - Amazon.com
Tebru Lamp Socket with wire switch, 1Pc E27 Hanging Pendant Light Fixture Home Lamp Chandeliers Bulb Socket Holder Cord with Switch, Hanging Light Socket - Walmart.com
E27 Black Phenolic Smooth Skirt Toggle Switch Lamp Holder with 1/8ips Threaded Cap
10M Wireless RF Remote Control E27 Light Lamp Holder Cap Socket Switch Adapter | eBay