Top features:- Daylight simulation to help combat symptoms of SAD- Medically certified, meeting European Directives- LED lighting which is more energy efficient and longer lastingDaylight simulationHelp to treat and combat symptoms of Seasonal Affective Disorder (SAD) with the Beurer TL 50 Brightlight.The 10,000 lux brightness helps to simulate natural daylight during dark winter months so your body reacts positively to what it recognises as sunlight.Medically certifiedThe light meets European Directives 93/42/EEC and 2007/47/EEC and the Medical Devices Act, so you can be sure you are getting the right sort of light for your body.LED lightingThe Brightlight uses LED lighting, which is more energy efficient and longer lasting than incandescent bulbs, with a lifespan of up to 20,000 hours.