This is an old zwave device that does not report its status back automatically to the controller.
The driver to use is Generic Zwave Dimmer. And then, use the built in Zwave Poller app to poll this switch so the hub keeps track of the current status of the dimmer.
Also, without polling, the dimmer will not be controlled well by voice assistants like Alexa. Three final things:
- Click Configure each time you change drivers.
- The “Smart” drivers are for zwave+ devices.
- Consider replacing it with a zwave+ device like a Zooz or iNovelli dimmer.
