Features: 100% brand new and high quality. This motor speed controller is mainly used for DC motor speed regulation. Stable performance, simple and most cost-effective multi-function operation, ease of of use are compact DC brushless DC drives. This three-phase brushless DC (BLDC) motor sensorless uses high quality chips. for extended tension. This motor speed controller supports both CW and CCW rotation of DC motor. Specifications: Input voltage: DC5-36V Forward reversal: within 15A Input current:> motor working current Speed control: potentiometer (270 linear degrees) Speed regulation range: 0-100% Support motor: brushless motor Type of connection: barrier terminal Knob specification: 100K (with switch) Module size: 10 * 6.8 * 4cm/3.93 * 2.67 * 1.57in Weight: 141g Package included: 1 x Motor Speed Controller Note: 1. Input voltage must differentiate "+", "-", can not input 220V voltage 2. The input voltage must be equal to motor rated voltage between 5-36V 3. The ABC motor wire does not differentiate the sequence