Item Type: DC Motor Speed Controller_x000D_ Working Voltage: DC10V-DC50V, wide working voltage range_x000D_ Control Power: 0.01-3000W (maximum instant start current 60A, long-term working current should be controlled within 30A)_x000D_ Different working voltages correspond to different control powers as follows;_x000D_ Working Voltage 12V, 12Vx60A = 720W_x000D_ Working Voltage 24V, 24Vx60A =1440W_x000D_ Working Voltage 36V, 36Vx60A =2160W_x000D_ Working Voltage 40V, 40Vx60A =2400W_x000D_ Working Voltage 50V, 50Vx60A =3000W_x000D_ Quiescent Current: 0.04A (When the working voltage is between DC10V and DC50V, the static current will not exceed 40mA)_x000D_ PWM Duty Cycle: 5% -100%_x000D_ PWM Frequency: 15khz_x000D_ Working Temperature: -20~40 (This motor speed controller is of industrial grade quality and can work stably in environments below 0. General commercial grade controller can not work stably below 0_x000D_ Product Size: Approx 145x90x40mm / 5.71x3.54x1.57in_x000D_ Product Weight: Approx 254g_x000D_ _x000D_ Application: Various general-purpose DC brush motor speed regulation, various automotive motor speed regulation (automotive cooling fan speed regulation, automotive fan speed regulation, automotive wiper motor speed regulation, automotive air conditioning fan speed regulation), production line conveyor speed regulation, duct exhaust fan speed control, treadmill speed control, multiple computer fan speed control in parallel, electronic fan speed control, various DC bulb dimming, and various DC heater temperature control