Lethargy sleep problems anxiety and irritability are just some of the symptoms of winter blues a proven solution is light therapy and this sleek tablet style lamp is the smartest weve ever tested thanks to new led technology its far smaller than most light boxes taking up very little space on your desk or table and sliding neatly into its sleeve for travel the soothing glare and flicker free led lights emit the recommended 10 000 lux a level almost identical in quality to genuine s