OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › Powering OpenSprinkler DC › Reply To: Powering OpenSprinkler DC July 6, 2015 at 12:35 pm #39078 RayKeymaster If you are using 24V AC valves, yes, 9V DC would be ideal. But if you are using 12V DC valves, there is no need to do the 12-9 conversion. The hardware design will be published as soon as we hear some feedback from the initial batch.
