OttLite 759OR3 Task Lamp in Orange Rechargeable battery provides up to 3 hours of battery use Available in Black or White AC adaptor/charger included (can use while plugged in) Includes energy efficient 13-Watt tube -rated to last up to 10,000 hours Max. Height: 19.00 Inch Min Height: 11.50 Inch Base Diameter: 4.00 Inch