Vergiano Super Bright Flexible Dual Head Clip on LED Reading Light - Clamp Lamp Sensitive Eye Care - Rechargeable USB Desk or Table Lamp - Music Stand Light (BLACK) This innovative reading clamp lamp by Vergiano is equipped with TWO adjustable arms with the ability to rotate 360 degrees. Each arm is equipped with 4 bright and long-lasting LED light bulbs in order to provide you with maximum illumination. The clamp lamp operates with either a USB outlet or 3 AAA batteries. This reading lamp is fitted with a strong clamp which allows you to attach it to just about any surface including Our dual head LED reading lamp is protected by our 100% LIFETIME WARRANTY.