Mighty Bright,Mighty Bright XtraFlex2 LED Book Light,Mighty Bright,Mighty Bright,Book Accessories,NON-CLASSIFIABLE,Novelty" /> Two bright white, energy-efficient LED, Individual switchs allow light control Precisely engineered optical grade lens spreads light evenly Free-standing base 3 AAA batteries (included) Two energy-efficient LEDs cast bright white light Durable LEDs last 100,000 hours - no replacement necessary Use one or two LEDs by tapping button Precisely engineered optical grade lens spreads light evenly Sturdy clip grips almost anything