DC motor speed controller with a compact practical housing that is waterproof, suitable for outdoor use Includes screw terminals and an indication label showing power and motor electrode connections for convenient wiring Input is DC only; do not connect to alternating current or the unit may burn Proper polarity required; connect positive and negative correctly to avoid damaging the controller Benefits and use cases Outdoor ready performance: the waterproof housing protects the controller in rain, dust, and other outdoor conditions, enabling reliable operation for outdoor projects Easy and safe wiring: screw terminals plus a clear indication label simplify wiring, reduce installation time, and help prevent wiring errors Reliable DC motor operation: designed for direct current motors, avoiding issues and damage associated with wrong input type Polarity protection: clear guidance on positive and negative connections minimizes the risk of controller damage Practical applications Outdoor automation: control the speed of a DC motor in a garden gate, awning, or solarpowered mechanism exposed to the elements DIY robotics and projects: implement adjustable motor speed control in hobby robotics, CNClike setups, or custom conveyors Small workshops and portable setups: use in compact devices or portable tools that require controllable DC motor speed while withstanding outdoor or workshop environments