Mccool Mini USB LED Light Lamp 180 Degree Adjustable Portable Flexible for powerbank PC Laptop Notebook Computer keyboard,perfect for Night Working & Book Reading, 10,000 hours working life (blue) Slim desgin, Desk,bed,outdoor, wherever you are, it offers convinience Soft light lampshade, it avoids direct led light to protect your eyes Soft and bendable silicone body, it easy to use anywhere It can be used for any 5V USB prot. Laptop,powerbank or usb charger etc Average Life : 10,000 hours