RioRand 12V-40V 10A PWM DC Motor Speed Controller w/ Knob--High Efficiency, High Torque, Low Heat Generating with Reverse Polarity Protection, High Current Protection From left to right they are Motor-, Motor+, Power-, Power+ Features: Control the speed of a DC motor with this controller High effi...

Specifications: 1. Net weight: 70g 2. Size: 74 * 47 * 28（mm） 3. Model: RRCCM2SPC Main technical parameters: 1.Working Voltage: DC 10V - DC 30V 2.Maximum power: 120W 3.Rated Current: 3A 4.Max Current: 4A 5.Maximum continuous output current:3A ;Overload short circuit protection current:4A ,short ci...