Great for reading, or seeing in hard-to-see spots – the Energizer® Book Light easily attaches to where you need warm white light. It’s the last clip-on light you’ll ever need because it makes a great reading light and book light. Scientifically designed beam is engineered to provide wide illumination of objects up to 4 meters; perfect for reading, household or automotive tasks Warm white LED provides excellent contrast and a more natural reading experience Handy clip attaches to surfaces up to 0.5 inches (13mm) thick Flexible neck allows users to precisely direct the light Slim clip-on light design – collapses and locks for easy storage