0nly one with 4 wires works great!
I got the switch I needed and it came with good instructions. My lamp works again!
I spent 30 years as a technology guy. Back in the '90s, we coded websites so you could enter you ZIP code and autofill fields. Few sites do that now. This site does. Finding the right switch was easy. Even better, the basic installation steps. Especially the wire color codes for the different manufacturers. I forgot that I could have purchased the switch at a local dealer, but I'm glad I ordered through Switch Prince. The wire color codes saved my butt on this project.
The switch/socket was just as described. Shipping was fast and the seller kept me informed of the status.