Features:1. Enable to provide a continuous current of 30A to your DC motor or other DC load.2. It is industrial design, stable and reliable, with anti-static circuit, safe to use.3. Widely used in industrial DC motor speed regulation, industrial conveyor belt speed regulation, lighting and lighting mediation, computer power supply cooling, DC fan, etc.4. The energy power of the power supply can be utilized and the efficiency of the circuit is high.5. You can control the speed of a DC motor with this controller, high efficiency, high torque and low heat generation.Specification:Condition: 100% Brand NewItem Type: Motor Speed ControllerSupply voltage: DC12V-24VOutput current: 30AProduct features: Control brush motor speed (Speed Knob Switch)Product Size (Length * Width * Height): Approx. 70 * 50 * 15mm / 2.8 * 2 * 0.6inInstallation Size: Approx. 61 * 41mm / 2.4 * 1.6in (4 * diameter 3mm)Product Weight: 50 g / 1.8 oz(approx.)Product Packaging: Anti-static PackagingPackage List:1 * Motor Speed ControllerNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.