The Only Built-in Battery Music Stand Light - BYB E-41 Series Clip-on Music Stand Light LED Clip On Book Reading Lamp, Built-in 1000mAh Li-ion Battery, AC Adaptor and USB Cord, Multifunction Clean Cloth Included, Perfect Portable Lights for Musicians, Artists, Crafters and Readers, The Best Choice for Reading Music Score Sheets or Books at Night on Bed, Ideal Accessories for Mixing, Work, Craft, Travel and Desk (4 LEDs) for $7.95 by entering code "I5UPD8OP" to check-out on amazon.http://www.amazon.com/gp/B00RGKT2JM