Thanks Ray, that voltage regulator looks like a good solution. I was also looking at this one https://www.littlebird.com.au/products/pololu-adjustable-9-30v-step-up-step-down-voltage-regulator-s18v20ahv
I’m in Australia, so some amazon options are not available.
I’ll be sure to use the barrel jack.
I assume 2A will be enough? Most of these regulators seem to be limited to 2-3A max.
My latching solenoids need a min of 9v so I’ll need to keep the voltage above that, or does the controller generate a higher voltage when switching them on/off?