Discount: 27%
5V Brightness Control USB-Powered LED Ring Light Dimmer Switch With a Rotary Knob. Brightness Regulation: The knob allows for smooth, stepless dimming from 0% to 100%, allowing you to adjust from a subtle glow to full brightness.Power Compatibility: Designed for 5V devices, this controller is ideal for USB LED strip lights, desk lamps, and small USB fans.
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