Flexible USB LED Light Lamp 180 Degree Adjustable Portable Lamp for Power Bank PC Laptop Notebook Computer and Other USB Devices Soft and bendable silicone body, it is easy to use anywhere. Soft lampshade, avoid direct LED light and protect your eyes. No batteries needed, do not worry about power running out. It can be used for any 5V USB ports, such as laptop, powerbank and other usb chargers. Very USEFUL and HANDY in different occasions such as camping, book reading, working and playing computer, etc.