SueaLe 4V-12V 5W Multi-Gear USB Fan Speed Regulation Controller Module Interface Manual

Fan speed regulation principle: The non adjustable USB fan is a 5-volt direct supply fan motor, while the two speed fan has an internal circuit board When placed in the second speed, the board raises the USB 5V and then connects to the motor, resulting in a higher air volume The output voltage range of this stepless smoothly varies between 2.5V and 8.0V, and the air volume can be set arbitrarily! And the range is wider! Turning the knob clockwise can increase the air volume, while turning it counterclockwise can reduce the air volume, and the knob has a switch function Insert the male head of the into the phone charger,, computer USB, fan plug, and then plug into the female head of the! Alternatively, use USB 5.0V power supply USB fan air volume regulator Suitable for the very common 5.0V USB fan