This is the award-winning portable lamp that helps combat jet lag by shining the full-spectrum light needed to regulate sleep. Its ultrabright 20,000 lux LEDs simulate the white light of the noon sun—an important trigger for circadian rhythms—and sitting in front of the lamp at a time one needs to be awake at the destination quickly teaches the body when to be alert and when to be drowsy in a new time zone. Weighing only 1 lb., the slim, cordless lamp slips into a carry-on and sets up on an airplane tray table or hotel nightstand. With LEDs rated to last 50,000 hours, it also mitigates the effects of seasonal change and shift work. Comes with a USB cable and AC adapter for charging via a laptop or wall outlet. 12" H x 3 1/4" W x 2 1/4" D. (1 lb.)