Carson’s BookBrite™ is a compact, ultra-bright LED booklight. Its fully-adjustable lamp head auto-extends and swivels to put light right where you need it! Clips to any size book or magazine, and can be used for convenient table-top illumination • Model Number: BB-22 • Weight: 0.8 oz. / 22.6 grams • Dimensions: 3.75 x 1.75 x 0.75" / 9.5 x 4.5 x 1.9cm • Batteries: 3 AAA (not included) • Min. Qty. Multiples of 4.