Youmile 5 pcs USB Fan Speed Controller DC 5V Mini USB Fan Stepless Governor DC 4-12V to 2.5-8V 5W USB input Micro input with Switch Function Regulator Speed Controller

• 【What it does】: The USB fan speed controller realizes stepless speed regulation and switch function by connecting the fan.
• 【Material】: USB Fan Governor is made of electronic accessories element, inner conductor is pure copper.It is long lasting and durable for you to use.
• 【Specification】: Working Voltage:DC 4V-12V;Output Voltage:DC 2.5~8.0V;Rated power: 5W(Do not overload!);Test temperature: -40~85℃;Size:50*18mm.
• 【How to use】: Insert the governor into the phone charger or charging treasure, insert the fan USB plug into the USB port of the governor, and then turn the adjustment knob to adjust the small air volume and large air volume.Turn the knob clockwise to increase the air volume.Turning it counterclockwise will make the air volume gentler and the knob has a switch function.
• 【Note】:When using the two-speed adjustment fan, please put the fan in the first gear, otherwise it may not be able to adjust the speed.

Product Description Fan speed principle: The non-adjustable USB fan is a 5 volt electric fan motor directly, while the two-speed fan has a boost circuit board inside.When placed in the second gear, the booster board raises the USB 5 volts.When the motor is connected,the air volume will be big.The stepless governor output voltage range varies from 2.5 volts to 8.0 volts, and the air volume is arbitrarily set!And the scope is wider! Turn the knob clockwise to increase the air volume, counterclockwise to reduce the air volume, and the knob with switch function. Specification: Product Name:USB Fan Stepless Governor Working Voltage:DC 4V-12V Output Voltage:DC 2.5~8.0V Rated power: 5W(Do not overload!) Test temperature: -40~85℃ Physical dimension:50*36*18mm Note: When using the two-speed adjustment fan, please put the fan in the first gear, otherwise it may not be able to adjust the speed. Package includes: 5 x USB Fan Speed Controller