The Amble Designer office desk lamp allows you to charge mobile devices on your desktop and it has a rechargeable lithium battery for power on the go. It has a tri-position base that changes lighting each time it's moved to a new position and the shade around the LED automatically tilts and falls into place to eliminate glare. The built in occupancy sensor turns the lamp off after 30 minutes of inactivity and it's available in different color options. Quality guaranteed by a 15 year structural warranty and a 1 year warranty on the LED/Transformer.