- Easy to Use: Simply connect the controller to your phone or power bank, plug the fan's USB into the controller's USB port, and adjust the volume using the knob for precise control. - Versatile Applications: Perfect for regulating the speed of motors, fans, fish tanks, and more. This controller adapts to various uses, making it an essential tool for hobbyists and professionals alike. - Specifications: Operates on a voltage supply range of 4 to 12 V with a rated output of 5 W (avoid overload). It supports a maximum current of 5A. The potentiometer features a switch function and is constructed from durable PC + metal materials for long-lasting performance. - Included in the Box: The package contains a fan controller module that allows for stepless speed regulation, with output voltage stability ranging from 2.5V to 8V, ensuring optimal fan speed adjustment for maximum comfort. - Practical Use Scenarios: - Cooling Solutions: Use it to control the speed of cooling fans in your computer or electronic devices, enhancing airflow and reducing noise. - Aquarium Management: Regulate the speed of water pumps in fish tanks, ensuring a suitable environment for aquatic life. - DIY Projects: Ideal for hobby electronics, allowing for precise speed control in various DIY applications.