Energizer LED Clip Booklite - Book Reading Light Product details: Totally hands free - Flexible rubber neck to easily adjust light. Sleek and Compact design, you can carry it with you wherever you go - Clips together for easy storage. 2 light modes: High and Energy Saver - Diffuser lens delivers broad even light making it easy to read books of all sizes. Run time: 31 Hours - 1m drop resistant. 2x 2032 Speciality batteries included.