The compact Konig & Meyer 12242 Single Head 2 LED FlexLight has 2 extra bright and long-lasting LEDs rated for 100,000 hours. The flexible gooseneck provides an extremely variable adjustable light beam. The extra wide clip (up to 25 mm) attaches to music desks, table tops etc. It can also be used as a standing light. Very compact and easy-to-use. Includes 3 batteries (1.5 V AAA) with a battery life of up to 20 hours. Optional AC adapter not included.