**Smooth PWM Speed ​​Control & Broad Compatibility:** This DC motor speed controller utilizes Pulse Width Modulation (PWM) technology to achieve stepless speed adjustment. It supports an input voltage range of DC 6V–28V, with a maximum continuous output current of 3A (do not exceed 3A) and an output power of up to 80W. It is compatible with most low-voltage brushed DC geared motors commonly used in hobbyist and small-scale automation applications.**Forward/Reverse Direction Control:** With a 3-position toggle switch, you can easily switch the DC motor between forward, stop, and reverse modes. The 15 cm (5.9 in) switch connection cable is made of ultra-soft, high-temperature-resistant silicone wire, allowing for flexible installation and ensuring long-lasting durability.**Important Safety Notes & Usage Restrictions:** This product is designed exclusively for DC power sources: **Never** connect it to 110V/220V AC mains power, and strictly avoid reversing the polarity of the power supply (connecting positive to negative). This speed controller is suitable only for low-voltage brushed DC motors, with a maximum load current limit of 3A—**do not** use it with high-current motors (such as 775-series motors).**Ideal for Hobbies & Small Projects:** Perfectly suited for a wide range of hobbies and small projects popular within the maker community, including: small robotics, remote-controlled vehicles, model trains, small cooling fans, and student electronics experiments. It provides reliable PWM speed control and forward/reverse switching capabilities for low-power DC motor systems.**Compact Design & Packaging Details:** The product dimensions are a mere 3.2 × 5 × 1.5 cm (1.3 × 2 × 0.4 in), with a weight of approximately 1.13 oz (32 g); its lightweight and compact design allows for easy installation inside various small enclosures or project cases. Package Contents: 1 × RioRand DC Motor Speed ​​Controller. Note: This product is a "speed controller," **not** a "voltage regulator"—please ensure that it is compatible with your specific motor and power supply equipment.