4XDC 10-55V 100A 3000W Motor Speed Controller Resible PWM Control Forwa and Res. 4X100% and and high qua.With forwa and backwa two-way toggle switches. The motor speed controller can control the speed and rotation dirion of the motor. Size: 13x9.8x4cm / 5.12x3.86x1.57inch. This item is in the category "Business, Office & Industrial\Industrial Automation & Motion Controls\Other Automation Equipment". The seller is "huixang2" and is located in this country: CN. This item can be shipped worldwide.