[Stepless Speed Control] Adjust airflow precisely with a smooth-turning knob offering 2.5V to 8.0V voltage range for customized cooling or gentle breezes.
[Wide Compatibility] Works with most 5V USB fans and power sources like computers or power banks for flexible use in offices or homes.
[ On/Off Switch] Built-in switch allows quick activation or shutdown without unplugging the device for added convenience.
[Compact & Durable] Lightweight aluminum construction ensures portability and long-term reliability in daily use.
[Multi-Scenario Use] Ideal for desks bedrooms or small spaces needing adjustable airflow with silent operation.

Item Type:Fan Speed Controller
Material:Aluminum
Input Voltage:DC4~12V
Output Voltage:DC2.5~8.0V
Rated Power:5W
2 x Speed ControllerHow to use:?
Insert the governor into the mobile phone charger, power bank, computer USB, etc., plug the fan and plug it into the governor! Or use Micro USB 5.0V to supply power.
For two-speed fans, please put the fan in one gear, otherwise you may not be able to adjust the speed!??