1、High Quality Circuit Board: The speed controller adopts high quality circuit board, which has a longer service life. 2、Stable Performance: This simple and easy to use DC motor speed controller has stable performance. 3、Digital Display: The speed controller is designed with a digital display, which displays the percentage of actual speed to maximum speed. 4、Power off Memory Function: The speed controller has the function of memorizing the last set speed value after power off. 5、Professional Manufacturing: This is a professionally manufactured speed controller with superb craftsmanship and high reliability.<p class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text">Item Type: Stepper&nbsp;Motor&nbsp;Driver&nbsp;BoardModel: YF-18Input Voltage: DC8-24VAdjustable Speed Range: 0.1-999 rpmApplication: Stepper Motor, DC Motor<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style>1 x Speed ​​Control Module1 x Cable