I don't need two plates, but I found this piece of plexi that was the right size for 2 . I mounted 2 fans . my question is I only want to run 1 power supply ,how do I wire that and what size power supply? . I started with a 6volt and it wasn't enough , went to a 9volt works but seems weak . my 50 pot does not adjust speed just is a on & off , thinking I need a 25 pot. right now I only hook up 1 at a time
![stir plate 003.jpg stir plate 003.jpg](https://cdn.homebrewtalk.com/data/attach/168/168582-stir-plate-003.jpg)
![stir plate 004.jpg stir plate 004.jpg](https://cdn.homebrewtalk.com/data/attach/168/168583-stir-plate-004.jpg)