Thanks mike but will the voltage damage the LED? Since the output of the MC is 12V and the voltage rating for the LED is 3V/2A.
A MOS FET like this type will drive a 2A diode, add a series resistor to the LED.
Note: a 200R with a 3V LED and a 12V supply will not drive a LED with 2Amps.
More like a 4.7R rated at least 25Watts!