GOOLOO Mini USB LED Light, Adjust Flexible Portable Reading Lamp for Power Bank PC Laptop Notebook Computer and Other USB Devices Lambency Lampshade design provide eyesight protection; avoiding direct LED light Flexible, bendable body, this compact mini size is portable enough for you to use in different occasions such as reading, writing, working, night light Super power saving, No batteries needed and charge free. NO worried about the power running out of; Works great with your laptop, power bank or wall charger It can be used for any 5V USB ports, such as laptop, power pack, GOOLOO jump starter and other usb chargers