SAD Day Light Sky Lamp by Carex Maternity Care Gradient sequential compression system: most 16 7136 Gradient sequential compression system: most firm at the bottom (foot) and gradually reduces toward the top of the garment like human body and trusting customer service The Day Light Sky is designed to provide optimal bright light therapy treatment and for the user * The two light setting provides 10 000 LUX while the one light setting provides convenient task lighting * BrightZone Technology engineered and tested to provide the field of illumination and 10 000 LUX experts recommend for maximum therapeutic benefit * The Day Light Sky light enclosure is 33% smaller than the Day Light Classic while mainlining the same field of illumination adding versatility for the user * The white diffusing lens eliminates glare and evenly distributes the light * Two 55 watt light tubes emit a warm light and minimize potentially harmful blue rays * Hi impact polycarbonate lens filters 99 3% of harmful UV rays * The height adjustable arm allows the light to be positioned at the appropriate height and angle for the user