Exalt Flash LED Desk Lamp helps bring you peace of mind with the intuitive flashlight head that automatically illuminates during power interruptions. Simply detach the lamp head for rechargeable, battery-powered, portable lighting that lasts up to an hour. Dimness setting features a memory function and allows you to choose the right brightness level for you. PureOptics LED technology provides energy-efficient lighting to deliver vivid, true-to-life colors, rich contrast and unparalleled clarity. Flicker-free light zone is clear of shadows, halos and troublesome glares. Adjustable arm reaches up to 23" and provides a light zone for convenient illumination and a bright focus area. Cost-efficient LEDs last up to 15 years and use 85 percent less energy than incandescent lamps. Built-in USB port allows you to charge your device within reach.