Item Type: Speed Controller <br>Working Voltage: DC4.5V-28V <br>Output Current: 0-5A <br>Output Power: 90W (large) <br>Quiescent Current: 7u A (standby state) <br>PWM Duty Cycle: 1%-100% <br>PWM Frequency: 20khz<br>1、PWM DC motor speed controller with switch function.Small size, low power consumption, fast response. <br>2、High power high efficiency, It is precise and reliable with good long?term stability. With fixing screw hole, convenient for install and fixed. <br>3、Working voltage can be switched to 4.5V?28V by bridging the connector marked "4.5V?35V" <br>4、The product working voltage is DC4.5V?28V, output current is 0?5A, output power is 90W (large), quiescent current is 7u A (standby state), PWM duty cycle is 1%?100%. <br>5、Using high?quality materials, strong and durable, has a long service life.The input of the DC motor speed controller is direct current, and cannot be directly connected to alternating current (for example: household 220V alternating current), otherwise it will burn out! ! ! <br>Do not connect the positive and negative terminals of the DC power supply in reverse, otherwise the governor may be damaged. <br>The motor can be positive or negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence. <br>Adjusting the potentiometer knob can change the duty cycle of the governor output and the motor speed.2 x Speed Controller<div>2 x&nbsp;Gasket</div>