Thanks loungelyzard for the exact numbers.

Power consumption depends on both supply voltage and the current the unit draws. Even if you apply only 12V the unit can draw big enough a current to suck in whatever power it has to consume. Also, a unit cannot produce more energy than it consumes unless there is a chemical or nuclear process that emits energy is going on inside of it which is not the case for these units. These numbers looks a bit odd to me too.

Shiral