<p>PWM Speed Controller designed for 12V 4-wire PWM fan\/pump.</p> <p>This PWM Speed controller support 12v standard fan speed control, also support computer water cooling PWM pump head speed adjustment.</p> <p>This governor is recommended to control the output power within 7-8 watts (12V 0.6A).</p> <p>This governor input port is USB Type-C female.Output is standard PWM 4pin fan port.</p> <p>Built-in DCDC boost circuit(boost USB 5V to 12V).Built-in pwm signal generator ( to adjust speed).</p> <p>Fan speed adjustment range 0-100%.</p> <p>Turn the knob clockwise to increase the speed, Turn the knob counterclockwise to reduce the speed.</p> <p>The application scenario of the governor design is mainly powered by the charging head\/rechargeable battery, the common output capacity is generally 5V\/2A, higher specifications are relatively rare, and the parameters of 12v\/0.7A fan almost reach 5V\/2A full power supply, while taking into account the small size of the PWM governor so limited cooling capacity.</p> <p>It is recommended that the output current be controlled below 0.7A for short time use and below 0.5A for long time use.</p> <p>Here means the current at the maximum speed, the fan current vary proportionally according to the speed.</p> <p>Input voltage: 5V</p> <p>Output voltage: 12V</p> <p>PWM frequency: about 25KHz</p> <p>Output current: rated 0.5A\/maximum 0.7A</p> <p>Input port: USB TYPE-C female port</p> <p>Output: PWM 4Pin</p> <p>Speed range: PWM duty cycle 0-100%</p> <p>type: 1 to 3 Adapter cable</p> <p>Colour:Black</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>1 x PWM Speed Controller</p> <p>1 x USB to TYPE-C power supply cable</p> <p>1 x Adapter cable</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>