This is a 1.8V – 12V/2A DC Motor PWM Speed Regulator.The DC Motor PWM Speed Regulator 1.8V, 3V, 5V, 6V, 12V-2A speed control switch function for DC Motors allows controlling the direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 0%-100%. Th..