Usage Tips:Pack of 4 LED dimmer knobs specifically designed to control 0/1-10V DC Dimmable LED Drivers. This state-of-the-art low voltage electronic PWM dimmer can be seamlessly integrated with most LED driver modules, offering top-level compatibility that makes it a versatile choice for different LED lighting systems. Our DC 0-10V Dimmer Knob is crafted for LED lights that are equipped with a distinct dimmer circuit. The design and structure of this dimmer derivative is uniquely developed to drive a PWM circuit that is built into the light, enhancing the performance and functionality of the LED lights. This LED dimmer knob provides an extensive dimming adjustment range from 5 to , enabling stepless dimming without any flickering or humming concerns. It ensures control over the dimness levels of your LED lights, allowing you to create the desired ambiance and mood. Installation is simple and straightforward. The dimmer features a brown line for 'DIM +' and a blue line for 'DIM -'. Keep in mind that it is not designed for direct AC , thus maintaining safe installation and functioning is a must for successful operation. The actual product may have slight color differences or differences, which does not affect use. Colour:Black Material:plastic Package Contents: 4 x dimmer switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.