A rechargeable battery capacity of 1000mAh, which can be used for 5-60 hours (depending on different brightness) Features: Companion for Books and Desk： Clip-on design allows you to read in beds or working in the study by clipping led reading lights on books, computers, desks, and headboards. Soft surface protects pages being clamped and avoids damage. Double Heads Design： Two infinitely adjustable gooseneck arms provide a wider lighting area and illuminate up to two A4 pages of note, don't worry that some places can't reach the score. Personalized Dual Controls： An Independent control switch and 10 lighting modes provide flexible brightness choices and fully satisfy different lighting needs with eye-caring, bright, and no-flicker light during reading and working.
