Book Light, Lampat Portable Mini Reading LED Light ,Energy Saving, Night Book Reading Lamp Black Eye Protection:Soft light lampshade, it avoids direct led light to protect your eyes. Convinience:Mini usb led lamp with slim design,you can take it and use it anywhere you need. Long Life Span:50,000 hours. What You Get:1 x USB flexible LED stick lamp light,friendly customer service Super Power Saving, No batteries needed ! It can be used for any 5V USB prot. Laptop,powerbank or usb charger etc.