Most experienced people with electric have heard that power equals amps time's volts. This is is more complicated with AC circuit, but the situation is always true for direct current (DC) circuit. The actual power is called Real Power, which is the average time of the instantaneous product of voltage and current (Watts). Power that has been stated out is called Apparent Power, which is the product of RMS (root mean square) volts and RMS amps (VA, volt-amps). Power Factor (PF) =Real Power/Apparent Power, which varies with resistive loading and magnetic characteristics. SO the Real Power (consume power) is less dependent on the Apparent Power (stated power), and more on the Power Factor.