Library of Things: Seasonal Affective Disorder Lamp (SAD Lamp)Library of Things: Seasonal Affective Disorder Lamp (SAD Lamp)

The Verilux HappyLight Liberty 5K is the ideal energy lamp for discreet use at home or the office. At only about 6" x 7" x 3", it fits easily in a briefcase or backpack and sits inconspicuously on a desk or tabletop. But don't let its compact size fool you: It emits 5000 LUX - a good dose for daily use and moderate session times - and a full 50% of what's available from lamps more than 10 times its size. Combat seasonal change, the "winter blues" or the effects of shift work, jet lag, malaise or fatigue. The 5K's balanced Natural Spectrum illumination taps the potency of light to gently cue your body to recalibrate and stabilize, naturally reducing fatigue and lethargy while improving focus and concentration.