Day Lights are specially designed bright light therapy lamps recommended by doctors as the first line treatment for Seasonal Affective Disorder SAD or the winter blues. Used in clinical research for over 10 years Day Lights conform to all standards set by light therapy experts they provide the recommended 10 000 lux light dosage the light source is delivered at an angle that mimics outdoor light and the are 100% UV filtered for safety. 20 30 minutes each morning is all it takes to significnificantly improve energy levels and regulate sleep patterns for those who respond to light therapy. The new Day Light with adjustable legs can be used alone with the built in tilt back stand which also fits conveniently into standard carry on luggage.age. Three compact fluorescent light tubes 4 000 Kelvin deliver 10 000 lux at 12 inches for light therapy usage. Two way switch allows alternative 2 bulb 7 000 lux setting.