How will my lampshade attach to my lamp’s base?
The Euro fitter lampshade ring sits over the lamp socket. Refer to the third product picture for a visual of how this works.
What’s the difference between a Euro fitter ring and a Spider/Washer ring?
These lampshade rings attach to your lamp in a different way. Euro fitter rings are generally for IKEA lamp, and some Target lamps, while Spider/Washer fitter rings are more common in the United States. Lampshades with Spider/Washer fitters are for lamps with harps.
How do I get an electrical plug through that small hole? Do I have to do my own wiring to use this?
The spider/washer fitter lampshade ring (the one with the small hole) will be the furthest ring away from your lamp’s socket (ie: It’s the top ring in table and floor lampshades, and it’s the bottom ring in pendant or hanging lampshades). Lampshades with this type of fitter attach to lamps by means of a harp. The small hole in the ring allows it to balance on the harp and be secured by a lamp finial.