3 Brightness Settings - The ULT300 LED light offers three adjustable brightness settings, making it easy to choose the perfect level of illumination for your needs. Simply toggle between low, medium, and high light to find the best setting for your task. | USB or Battery Powered - The ULT300 light is both USB and battery powered, offering the best of both worlds. Use it as a desk light by plugging it into your computer or laptop, or take it on-the-go as a battery-powered reading light. | Flexible Neck - The flexible neck design allows you to direct the light exactly where you need it, without disturbing others. Position the light to shine directly on your keyboard, book, or other surface for optimal illumination. | Handy Clamp - The handy clamp design makes it easy to attach the light to headboards, desks, tables, or other surfaces, providing a stable light source wherever you need it. | The ULT300 light comes with a full manufacturer's warranty, as well as a 30-day cash-back guarantee, giving you peace of mind that you're making a smart investment in a high-quality product. If for any reason the light is not suitable for your needs, you can return it for a full refund.