If you want a book light to use when reading in the dark or low-light, I recommend the Mighty Bright TravelFlex Book Light. It is reasonably priced, well-made, light and small, easily positioned over a book page or Kindle display screen, attaches quickly and securely, the light is bright and the battery life is exceptional. And, it comes in several appealing colors. I have four of them - one I keep in my purse, one in my camping and vacation satchel, one in the living room, and one in the bedroom.