You are apparently correct Stove. In the absense of any reply from Questioneer, I checked with the company and there was no sense in going forward with the 347 V DDH ballast. It was apparently a special voltage for limited use in Canada which never actually came into being. It is of no import now, given the current products, and anyone who keeps bringing it up is living in the world of 2 1/2 - 3 years ago. This issue does not seem to have any significance now.
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