Igoober Amber Book Light is a great birthday gift for children, bookworms, Kindle, Ebook Readers. It's made of 100% blue light, which is easy on the eyes and sleep-friendly - and doesn't drain your battery unless you push the switch to turn on/off the light! It takes about 3 hours to reach full charge, so you can charge the battery, then it can light on. 1X LED Book Reading Light1x Micro USB Charging Cord. 1 x User Manual Specification: Material: Metal+ABS CCT: 1600K.