The Proline SL12NR Rechargeable Music Stand Light design is the industry standard providing a wide even light source for music sheets books manuscripts and much more. A rechargeable lithium battery keeps it juiced for hours while its two brightness settings allow you to dial in the right amount of illumination for each application. A recessed power button keeps the light from accidental triggering. The SL12NR can be charged with the included USB charging cable and AC adapter. Its clip also functions as a stand for even more application flexibility. Plus its natural warm light temperature relieves eye strain during long hours of use.