Features LED Display: 0.56in 3 digit oversized LED digital display with a display range of 000‑100, allowing you to see clearly in the worst conditions Positioning Speed: The knob realizes 0-100% adjustment, and at the same time, the 0-100 value is displayed on the digital display screen, which is convenient for customers to position the speed and improve the quality of the equipment Technical Parameters: Applicable voltage is DC6V‑30V, applicable current is rated current 6A, and the maximum current is 8A Basic Specifications: The frequency of this DC motor governor is 16khz (The motor is quiet at low speed and full of torsion at low speed) Potentiometer Specifications: The governor has high performance, the potentiometer resistance is B100K, the wire length is 20cm, the opening is 8mm Specification: Item Type: DC Motor Speed Controller Material: ABS Applicable Voltage: DC6V-30V Applicable Current: Rated Current 6A Maximum Current: 8A Speed Range: 0%-100% Product Frequency: 16khz (The motor is quiet at low speed and full of torsion at low speed) Potentiometer: Resistance Value B100K, Wire Length: Approx. 20cm / 7.87in, Opening Hole: Approx. 8mm / 0.31in Package List:1 x Motor Speed Controller1 x Radiators Note:Make sure the power is turned off before attempting to wire the controller. Package List 1 x Motor Speed Controller 1 x Radiators