Quote:
Originally Posted by Brian Carlton
If you think for one minute, you'll probably realize exactly why they didn't use 120V. 12V may have required too much current to get the illumination they sought.
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It all originates from the 120/240v service so it's just a matter of what transformer you use. The difference from 12 to 19.7 volt is not that much and 12 volt is much more common. As I said, I'm sure there was a reason they made the lamp 19.7V, but I'm not familiar with the system or the use of that voltage for anything.