Since this unit is a prototype, I was able to pick up a Siemens SITOP 24v unit but what is interesting is that no matter what I put into it (120-220-500 volts), it still puts out 24v.
Last I checked I lost on ebay by .50, however I know that if the co. gets one, they get 50. I checked my mail and got the expected-second chance offer at my price of 9.99 + shipping.
It's on the way. Nice din mnt unit, 5a.