2 PCS HW-602 USB Fan Controller Wind Speed ​​Controller Air Volume Controller Cooling Mute Multifunction Noise Reduction Switch Module

1. Input voltage: DC4~12V
2. Output voltage: DC2.5~8V
3. Output power: 5W (Do not use it with overload)
4. Function description: Suitable for common 5.0V USB fans on the market
5. How to use: Plug the male head of the governor into a cell phone charger, Power Bank, Computer USB, etc., then insert the fan cap into the female head of the governor to use.
6. Adjustment method: Knob adjustment (clockwise increase, counterclockwise decrease)
7. Features: Strong wind and weak wind can be adjusted by temperature, fan speed adjustment, speed adjustment, wide voltage input compatible with multi-speed power supply.
8. The module is a fast-adjusting fan module designed according to the principle of high-frequency switching power supply. The essence is to control the fan speed by adjusting the output voltage.
9. Matters needing attention: If used to adjust the fan in two gears, set the fan to the first gear, otherwise the speed may not be adjusted.
10. Size: 50x18mm