This portable and light-weight USB light is used for learning and reading. And the lamp gives off bright and soft light without twinkling, making no hurt to your eyes. Energy-saving designed lamp is lower power consumption and has long lifespan. Flexible goose neck makes you adjust the illuminating angle you desire. USB charging makes it easy to use. It is convenient to plug it into the USB port on your notebook without external power source needed. Besides, this item can be connected to the USB port of the notebook and desk computer etc. It is ideal for lighting the notebook in the dark.