The Amble Designer black desk lamp is ideal for providing glare free lighting that's perfect for reading, typing and more! When you move the tri-position base back and fourth it automatically switches between different pools of light with a 15.8" reach. It has a rechargeable lithium battery, USB charging port, dimmer button and a built in occupancy sensor that will turn the lamp off after 30 minutes of inactivity. You have your choice of different color options and it comes with a 15 year structural warranty and a 1 year warranty on the LED/Transformer.