Versatile Dimming Options: Experience precise lighting control with our 10-speed dimmer switch. A short adjusts brightness incrementally from 10% to 100%, while a long offers stepless dimming for seamless itions. Perfect for creating the ideal ambiance in any setting. Reliable Memory Function: Our USB LED dimmer remembers your last brightness setting when connected to a continuous 5V power supply. This feature ensures your lighting preferences are maintained, even if the switch is turned off and on again, unless the USB port is completely powered off. Universal Compatibility: Specifically designed for 5V single color LED lights, this dimmer switch features a convenient female to male USB connection. Note: It is not compatible with , requiring manual operation for adjustments. Broad Application: Ideal for softening overly bright lights or conserving energy. Use our USB dimmer switches for a variety of 5V USB LED setups like neon signs, TV backlights, monitor backlighting, LED string lights, fairy lights, 3D printer enclosures, RV lighting, and other low-power USB devices. Compact and Convenient Dual Pack: Each package includes two USB dimmer cords, allowing for backup or simultaneous use across multiple devices. The compact design ensures easy integration into any setup without occupying excessive space. Colour:Black Material:plastic Package Contents: 2 * switch wire 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.