Features: PWM speed controller supports standard 12V fan speed control, also supports PWM pump head speed adjustment of computer cooling. Regulator is recommended to control the output power between 7 and 8 watts (12V 0.6A) Regulator input port is USB Type-C. Built-in DCDC boost circuit (USB 5V to 12V boost). Built-in PWM signal generator (allows you to adjust the speed) The output is a standard 4PIN PWM fan port, fan speed adjustment range 0-100%, turn the knob clockwise to increase the speed, turn the knob counterclockwise to reduce the speed, turn counterclockwise to close the output. The application scenario of the regulator is mainly powered by the charging head/rechargeable battery, the common output capacity is generally 5V/2A, higher specifications are relatively rare, and the 12V/0.7A fan parameters almost reach 5V. Full power supply /2A, while taking into account the small size of the PWM regulator so limited cooling capacity. It is recommended that the output current be