Clip-on LED sheet music light 6 LEDs give you exceptional illumination Rugged, solid-state lighting technology lasts up to 100,000 hours Powered by 3 AAA batteries or a long AC adapter cord (both included) Easy access power switch on top controls 2 brightness levels Strong and flexible gooseneck arm that moves in as many directions as needed Sturdy clip attaches to music stand or sits freestanding Shade on back of lamp head directs more light on music and reduces glare towards audience Travel bag included