Take control of your LED lighting with this versatile USB dimmer cable. This white extension cable features a convenient on/off switch and adjustable brightness controller, giving you precise control over your USB-powered LED bulbs and lamps. Operating on DC5V, this dimming accessory lets you create the perfect ambiance by fine-tuning light levels to suit any situation. The user-friendly design makes it simple to adjust brightness levels with smooth precision. Perfect for desk lamps, reading lights, craft spaces, or any USB LED lighting setup where customizable illumination is desired. This practical lighting accessory integrates seamlessly with your existing USB LED fixtures, adding convenience and functionality to your lighting setup. The cable provides reliable power delivery while giving you the flexibility to position your lights exactly where needed.