Dimmable USB lamp: comfortable LED light that creates a bright reading space at night. USB powered via computer or USB charger. The dimmable control lets you adjust brightness to reduce eye strain and suit any task. Keyboard USB lamp: bright enough for reading, writing, or using a keyboard in most occasions. Provides sufficient light in lowlight environments. USB powered from a computer or USB port, making it convenient for desks, dorms, and home offices. Small USB lamp: compact LED light for reading in bed without disturbing others. Portable and easy to position for focused lighting. LED USB light powered by any USB source. Dimmable USB light: flexible design for directing light to your preferred position. Easy to adjust for laptop use, desk work, or bedside reading. Compatible with standard USB ports for wide usability.