The Sylvania LED Book Light is the ideal companion for reading, taking notes, or searching for something, all while in the dark. It can be used in the bedroom so you can let you loved one sleep or while traveling so you don't have to disturb others. The LED is situated on an extendable gooseneck and can swivel up and down to direct your light in just the right place. A large clip firmly attaches to books, magazines, binders and day planners. It is powered by two CR2016 batteries (included) so there are no wires dangling around to bother you. And unlike traditional incandescent lights, LEDs do not heat up so there is no danger if you fall asleep and the light tips onto your book or blanket. The Sylvania LED Book Light offers plenty of illumination for small spaces and is adaptable to suit your needs. This product requires the use of two CR2016 batteries, included.