ITEM NAME:CCM5D Digital Display LED 6V 12V 24V PWM Motor Controller Speed Regulator A#S Product Description Description: CCM5D Digital Display LED 6V 12V 24VÂ PWM DC Motor Controller Variable Speed Regulator Features: 1. CCM5D DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM). 2. Large 0.56 inch 3-digit LED display numbers allow viewing under the most adverse.The display range of 3-digit LED display is "000-100". PWM frequency: 16kHz. The LED display displays the PWM output duty cycle. Incorporate a push key. Push closed, and then push open. Adjustable speed range is 0%-100%.