Sorry for the spam, my browser is spazzing. Anywayz, I was thinking that maybe it worked on your case because it’s acting like an extension of your Echo? I don’t really own one so that’s probably why it wasn’t working for me. All good now, I just needed one item and got a friend to order it for me.
As for your GE switches, there i see a few of them listed here. Might be worth checking out 