Description This item comes with connection protection, has from overvoltage, 20A to quickly fuse the ceramic fuse,can use voltage to control directly. use.-motor speed controller module Features - - Size: Approx. 6.9 * 5.9 * 2.8cm/ 2.7 * 2.3 * 1.1 inch (L*W*H). - Working Voltage: DC 6V - DC 90V (Ultra wide working voltage).-pwm motor speed controller - Control Power: 0.01 - 1000W(Max current :15A).-dc speed controller - Static Current: 0.005A ( Standby).-electric motor speed regulator - PWM Duty Cycle: 0% -100%.-pump motor controller - PWM Frequency: 15Khz.-power controller - Voltage control:0-5v(Voltage -mode control,can use to control the motor directly).-electric motor controller - With connection protection, has from overvoltage, 20A to quickly fuse the ceramic fuse,can use voltage to control directly. use.-speed controller for electric motor - Upgraded 6V-90V 15A DC Motor Pump Controller.-motor speed control - Control the of a DC motor with this controller.-pump motor speed controller - High efficiency, high torque, low heat generating.-intelligent motor control module - With reverse polarity protection, high current protection.-motor speed controller dc Upgraded 6V-90V 15A DC Motor Pump Controller -motor regulator High efficiency, high torque, low heat generating -DC Motor Pump Controller With reverse polarity protection, high current protection-dc motor speed regulator Control the of a DC motor with this controller -motor speed controllers 1 x Control1 x Control-dc motor governor