A device runs on electricity and performs a function. It consumes power at a rate of x.
You're telling me that a device that performs the same function will consume power at a rate of precisely x/2 simply by virtue of being plugged into USB?
A device runs on electricity and performs a function. It consumes power at a rate of x.
You're telling me that a device that performs the same function will consume power at a rate of precisely x/2 simply by virtue of being plugged into USB?