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LH0400 E27/E27 med base incandescent lamp holder/socket with two hole mounting and screw terminals
Orbitec 60 W Resina E27 Base Lamp Holder Tornillo Montaje - Etsy España
E27 Base Lamp Holder LED Light Bulb Socket Adapter with On/Off Switch US Plug,360 Degree Lamp Holder for Home Office Hotel Shop - Walmart.com
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