Question: 12 watts is how many amps?
Answer: These are technically all vector quantities, but since the power figure you provided is in watts (as opposed to volt-amperes), and the voltage is in RMS, then 12 watts = 120 volts x current (in amperes), or current (in amperes) = 12W/120V = 0.1 amperes = 100 milliamperes (mA).