10 led boards are 12v @ 250 ma, almost as much power as the UA-5 itself.
I think that calibration should be done to the individual unit, as output will vary. Someone should test this thing will fully charged and near-spent cells.
At the other end of the Outboard monitor spectrum, I guess, would be the Neutrik ML-1.
Meters, spectrum analysis, mini-O-Scope.
Very cool toy.
Anyone playing with one ?