Descriptions: This speed controller switch is for 3-Phase brushless motor, and support motor CW CCW, stable performance, simple and most cost-effective multi-function operation.The speed of the motor can be regulated by the potentiometer, easy to use. Features: This speed controller switch is for 3-Phase brushless motor, and support motor CW CCW Stable performance, simple and most cost-effective multi-function operation. The speed of the motor can be regulated by the potentiometer, easy to use. Small size and elegant appearance. Specifications: Input voltage: DC5-36v Output current: <15A Protective current: 15A CW CCW: support Speed regulating mode: potentiometer (270 degree linear) Speed adjustment range: 0-100% support for Motor: brushless motor Connection type: fence type terminal Knob specification: 100K (with switch) Module size: Approx. 8 x 6 x 2.8cm/3.15 x 2.36 x 1.1inch Weight: 87g Package Included: 1 x Motor Speed Controller Note: 1.The input voltage must be divided into positive and negative and cannot enter 220V home power 3. Motor line ABC,no sequence of distinction 4. Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering. .