OttLite J59376 Learning Light Table Lamp in Black Shows details clearly and accurately Shade adjusts up and down and rotates sideways for optimal positioning Reduces glare and eyestrain Product Dimensions: Max Height: 19.25in Min. Height: 14.75in Base Diameter: 5.00in Includes energy efficient 13-watt tube  rated to last up to 10,000 hours  bulb type A