DC PWM Motor Controller: Our motor controller features speed control and an on/off switch. The controller’s maximum voltage matches the battery voltage (18V). For a 12V motor, set the speed to ≤60% to ensure the output voltage is ≤12V, allowing the motor to operate properly without damage,Power Limit: The adapter has a maximum output current of 10A. For safe operation and to prevent damage to the battery and motor, use it with small devices and tools that power consumption up to 120W. Note:Exceeding 120W may risk damage to the battery or motor,Low Voltage Protection: Constructed from high-quality ABS material, the battery adapter includes a built-in low voltage protection device. It will automatically shut off when the battery voltage drops below 15V, preventing over-discharge and protecting the battery from damage,Convenient to Use: Our battery adapter is combined with a motor speed controller, two heat-resistant wires, and a fuse holder for added convenience. Simply mount the battery onto the adapter, adjust the PWM speed controller to match the motor voltage, and connect it to your device. (Note: Battery not included),Wide Application: This DC motor speed controller kit is ideal for devices with power consumption up to 120W, including upgraded electric toys, small power tools, small household appliances, small electric pumps, small fans, LED light decorations, and DIY robots. If you have any questions, please feel free to contact us,Applicable Battery Models: Compatible with Milwaukee 18V M18 batteries, including models 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, and others. The battery adapter connector is well-designed, fits snugly with your battery, and is easy to install and remove