The Lily LEDX office desk lamp with USB features well balanced lighting that is comfortable and glare free. You can adjust the intensity by pressing down on the power button and releasing when the desired level is reached, each time the lamp is turned on it will automatically illuminate at the previously set level. It has increased efficiency with a 90,000 hour lamp life and an energy saving mode that will shut down after six hours of continuous use. It can be ordered in different colors and is guaranteed by a 15 year structural warranty and a 1 year warranty on the LED/Transformer.