You may not spend as much time outdoors as you would like, or maybe long winter months leave you sluggish. Light is healing and natural light not only helps us feel rejuvenated but is also an effective treatment for winter blues and other non seasonal mood swings.
Verilux® is the leader in developing products that simulate the sun's rays using sophisticated full spectrum lighting technology. The therapeutic light systems bathe you in invigorating Natural Spectrum® "sunlight" and Verilux HappyLight® and HappyLite Mini® are the #1 selling light therapy devices on the market. 
Read more about treating Seasonal Affective Disorder with light.