Kinsman KBL04 Clip-on LED Light with USB power lead included - Black
Very small (pocket sized when folded up!) little music stand light, that will illuminate a double spread of A4 music nicely. I have used these in very dark and dingy orchestra pits and they perform nicely - not only do they light your page really brightly, but they also help to clip tall pages down. This one comes with 3 AAA batteries, and a USB power lead so that you can power it from a computer or digital mixing desk.