This Himalayan Sphere salt lamp produces cool changing light from its LED bulb. It plugs into any USB port. This causes the USB salt lamp to “glow” with a warm internal glow that’s beautiful on any desktop. The approximate weight of the USB salt lamp is 1-2 lbs (with an average height of 3.5″ and base width of 3″).  Salt Lamps are the perfect gift for anyone who works at a desk job