• EASY TO SECURE: Designed to fasten to books and e-book • BRIGHTNESS SETTINGS: Control the brightness with unique, full-range dimming • FLEXIBLE NECK DESIGN: The light fully illuminates the book pages and screen thanks to a flexible neck design. • REDUCED GLARE: This allows you to read in complete darkness and produces less strain on your eyes. • EASY TO REPLACE BATTERY: Light comes with (2) CR2032 lithium coin cell batteries. • PORTABLE & LIGHTWEIGHT: Easy to fold and can be conveniently stored in travel cases and backpacks.