I want to operate a solenoid (which I would do through a relay), to be switched on by Z-wave signal. But, I will not have 110V AC power available, which I notice is required for any Z-wave switches I can find. Is there a 6 VDC, or a 12 VDC, Z-wave switch? (I would like to operate this with four or eight 1.5 VDC batteries.) I haven’t found any such low volt switch. Is it even possible? Anyone know of one?