Unless you have an input to read the outcome from the switch, I guess, feedback

I have the exact same problem

Hi again, has somebody had luck with Iris by Lowes Zwave items? I bought a couple of items because they say "IRIS" the same than my GE switches but not detected by Domoticz

the smart plug has a label "zwave plus"

My config:
Raspberry Pi3
Raspîan Jessie
Domoticz beta V3.5985
USB stick Aeotec ZW090 ...