USB Fan Speed Controller Module Reducing Noise Multi-stall Adjustment Governor DC 4-12V

Features:

- - USB Fan Air Conditioner
- - Strong winds and weak wind adjust freely
- - Stepless Speed Regulation
- - Suitable for the very common 5.0V USB fan on the market

Specifications:

- Power supply Range: DC 4~12V
- Output Range: DC 2.5~ 8.0V
- Rated Power: 5W (Please do not overload use)

Regulation Principle:

The non-adjustable fan is a 5V direct fan motor,while the two-stall fan is the interior has a step-up circuit board,when placed in the second gear,the boost plate will be USB 5V up after the motor,the air volume is big!

The stepless speed governor output voltage range of 2.5V to 8.0V between the smooth change,the amount of free air flow set!and a wider range!Clockwise twist knob can increase the air volume,counterclockwise twist will reduce the air volume,and knob with switch function!