Worth noting that nearly everything that claims to run from 24 Vac also runs from 5Vdc. Nearly everything modern has a little circuit board which just detect

Worth noting that nearly everything that claims to run from 24 Vac also runs from 5Vdc. Nearly everything modern has a little circuit board which just detects 'voltage' or 'no voltage'. The exception is 'dumb' solenoids, valves, pumps etc, which are actually powered by the 24Vac.