OAproda&reg; Mini USB LED Light,Portable Reading Work Bed Flexible Adjust Angle Lamp Light for Powerbank,Computer Keyboard and Any Devices with USB Port(Green) Plug into USB port,can use with power bank,laptop and all other devises with USB port. Flexible USB LED Light, will bring light to your favorite position. Portable, easy to install,Without On/Off button. Essential light for your outdoor camping, emergency,travel and reading lighting. Material: Silicone,5 colors for choosing.