Inverted-L-bar format features a 180? pivoting arm for angling the lamp head to achieve the perfect lighting zone. Three adjustable temperature modes, with associated brightness intensities, allow you to tailor the lighting for resting, focusing or reading. Cost-effective LEDs last for up to 50,000 hours of continuous use and require 85% less energy than incandescent lamps. Shadow, flicker-, halo- and glare-free.