Exalt Adjustable LED Desk Lamp seamlessly combines a durable construction and modern design with high-powered LEDs for an office addition like no other. PureOptics LED technology provides energy-efficient lighting to deliver vivid, true-to-life colors, rich contrast and unparalleled clarity. Cost-efficient LEDs last up to 15 years and use 85 percent less energy than incandescent lamps. Desk lamp is designed to replicate natural daylight to help reduce eyestrain and increase productivity. Dimness setting features a memory function and allows you to choose the right brightness level for you. Adjustable lamp head rotates up to 360 degrees and lamp arm reaches up to 23" to position a light zone and create a bright focus area. USB port charges your phone or other devices effortlessly.