LED Clip Light easily attaches to where you need warm white light so it's great for reading books seeing in hard-to-see spots and household or automotive tasks. Scientifically designed beam is engineered to provide wide illumination of objects up to 4 meters. Warm white LED provides excellent contrast and a more natural reading experience. Handy clip attaches to surfaces up to 1/2" (13mm) thick. Flexible neck allows you to precisely direct the light. Slim clip-on design collapses and locks for easy storage. Runtime is 25 hours. Light output is 11 lumens.