Recall that seasonal affective disorder, or SAD, is a form of mood disorder in which people become depressed during the winter months, when there are fewest hours of daylight. Their moods then brighten in summer months, when there is more daylight each day. It turns out that people with SAD who are exposed to bright lights for a few hours each day during the winter months often experience complete relief form their depression within a couple of days.

his Litebook® offers the same ultimate in portability and incredibly effective treatment as the Litebook® ‘mains and battery combined’ but is powered by mains only. These light boxes employ revolutionary new white light emitting diode (LED) technology, resulting in an astonishingly bright light delivery system.