The ML-19 Super Wide Music Stand Light from JSI has the power to illuminate 4 pages of sheet music. The LED bulbs used are super bright and eliminate the need for bulb replacement. Using the two-brightness levels and flexible lamp post, the ML-19 can be adjusted to accommodate virtually any lighting need. The clamp will firmly grip a variety of materials and thicknesses without slipping. It operates using 3 AAA batteries, or by the included AC power adapter or USB cable!