Ultimate Book Light | Reading Light
Three days. I have been using this booklight for three days straight and it doesnt show the slightest sign of losing any battery. It doesnt deteriorate the state of the book (even when I left it clapped on for a few hours). The materials used to create it are sturdy and stiff. And to sum up my experience using the product, it is quite the perfect book light.
The Ultimate Book Light | Reading Light is a fantastic portable book light. This great gift for bookworms attaches itself to the book and lights up the pages with 6 evenly distributed LEDs in a suitable light color for reading. The built-in rechargeable battery lasts for 60 hours and can be charged in any USB ports with the cable included.