Hawking Technologies Z-Wave switches compatible?

I have a bunch of Hawking Z-Wave plug-in dimmers and appliance switches I use for controlling Christmas decoration lighting and was hoping to use these with my new SmartThings hub, but I can’t find any of the Hawking products in the list. I tried letting it find the devices but nothing showed up even though they are plugged in and operating (currently controlling them with a GE remote). Any help anyone can offer will be greatly appreciated.