Clamp-On Magnifying Lamp includes a 3-1\/2" long glass lens that helps reduce eyestrain and allows you to easily view small details at a sensible range. Extensive, 36" reach effortlessly clears monitors and other objects for convenient lighting. Fully movable, jointed lamp head provides multidirectional, focused lighting with a flicker-free light zone. Cost-efficient LEDs last up to 50,000 hours and use 85 percent less energy than incandescent lamps. Included clamp minimizes desk clutter and allows easy, tool-free desktop mounting.