On a typical buck/boost transformer the power across the primary and secondary windings is equal, ie. 1920 watts on the primary windings is also 1920 watts on the secondary windings. If, for example, I'm installing undercounter low voltage (12v)lighting and my load is 1920 watts, why isn't my current at 160 amps? Using P=I*E for my primary, current is equal to 120v*16a=1920watts, my secondary should equal 1920watts = 12v*160a. What gives?