Improve your mood, energy and concentration naturally with the HappyLight 2500 Energy Lamp from Verilux. As many as 1 in 7 American suffer from Winter Blues, which is a lesser form of Seasonal Affective Disorder caused by a lack of exposure to natural sunlight. Winter Blues can affect mood, energy, sleep, appetite and more. Fortunately, light therapy has been found to be an effective, chemical-free approach to addressing the symptoms of Winter Blues. And the Verilux HappyLight 2500 Energy Lamp provides the most studied and proven form of light therapy. The HappyLight's balanced Natural Spectrum Daylight gently helps the body recalibrate and stabilize, reducing fatigue and lethargy, improving focus, concentration and productivity. With 2500 LUX of Natural Spectrum Daylight,the HappyLight 2500 can also help address jet lag and difficulties sleeping and waking due to shift work. Even in southern climates, the HappyLight 2500 prompts the body's natural sleep patterns without artificial stimulants or drugs. The "mini" version of the HappyLight family of energy lamps, this lamp is ideal for the home, office or dorm room. Beat the Winter Blues with the HappyLight 2500 Energy Lamp.