Bright light is proven to be an effective treatment for SAD and using Arabica every day over the autumn and winter will make a big difference to symptoms such as tiredness, over-eating and a lack of energy and motivation.Just as sunlight naturally makes you feel good, getting extra bright light when you're stuck indoors is proven to put you in a better mood, boost alertness and help you to feel more awake.Arabica is a great value light box that's certified to the Medical Device directive and delivers the industry standard 10,000lux at an impressive 25cm.