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

1. Input voltage: DC4~12V2. Output voltage: DC2.5~8V3. Output power: 5W (do not use it with overload)4. Function description: suitable for common 5.0V USB fans on the market5. How to use: Plug the male head of the governor into a mobile phone charger, power bank, computer USB, etc., and then insert the fan plug into the female head of the governor to use6. Adjustment method: knob adjustment (clockwise increase, counterclockwise decrease)7. Features: strong wind and weak wind can be adjusted at will, fan stepless speed regulation, wide voltage input compatible with multi-speed power supply.8. The module is a speed-regulating fan module designed according to the principle of high-frequency switching power supply. The essence is to control the speed of the fan by adjusting the output voltage.9. Matters needing attention: When used to adjust the fan in two gears, please set the fan to the first gear, otherwise the speed may not be adjusted.10. Size: 50x18mm