and high quality Made of high quality material, durable and practical to 3-Phase Brushless Motor Speed Controller DC 5V 12V 24V CCW Reversible Switch Input voltage: DC 5V-36V Output current: within 15A Reversible: /CCW Protection current: 15A Input current: Over the working current of motor Speed regulation mode: Potentiometer (270 degrees linear) Speed range: 0-100% Knob size: 100K(with switch) Support motor: DC brushless motor Module size: 100x68x40mm(L*W*H)/3.94inch x 2.68inch x1.57inch Colour:As shown Material:plastic Package Contents: 1 x Speed Controller Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.