Condition: 100% Brand New_x000D_ Item Type: Motor Speed Controller_x000D_ Material: Plastic_x000D_ Color: As Pictures Shown_x000D_ 1. Working Voltage: DC10V-DC50V wide working voltage range_x000D_ 2. Control Power: 0.01-3000W (the maximum instantaneous starting current is 60A, and the long-term working current should be controlled within 30A.)_x000D_ Different operating voltages correspond to different control power as follows:_x000D_ 12V x 60A =720W when working voltage is 12V_x000D_ 24V x 60A =1440W when working voltage is 24V_x000D_ 36V x 60A =2160W when working voltage is 36V_x000D_ 40V x 60A =2400W when working voltage is 40V_x000D_ 50V x 60A =3000W when working voltage is 50V_x000D_ 3. Quiescent Current: 0.04A (when the working voltage is between DC10V and DC50V, the quiescent current will not exceed 40ma)_x000D_ 4. PWM Duty Cycle: 5%-100%_x000D_ 5. PWM Frequency: 15khz_x000D_ 6. Working Temperature: -20C - 40C (ambient temperature minus 20C to minus 40C) The speed governor is of industrial grade quality and can work stably in an environment below zero_x000D_ 7. Circuit Board Size(L x W x H): Approx. 122 x 87 x 32mm/4.8 x 3.4 x 1.3in (not including the adjustment part of the potentiometer)_x000D_ 8. Shell Size(L x W x H): Approx. 145 x 90 x 40mm/5.7 x 3.5 x 1.6in_x000D_ Wiring Instructions:_x000D_ B+ B- connect the positive and negative poles of the power supply_x000D_ M+ M- connect to the positive and negative poles of the motor