The BAOMING light therapy lamp simulates sunlight and uses blue light therapy to help people improve work pressure relieve fatigue and treat seasonal depression. The light therapy lamp also call happy light sad light therapy lamp sunlight lamp. Seasonal depression is an emotional disorder that occurs at the same time every year. Generally speaking seasonal affective disorder starts in autumn or winter and ends in spring or early summer. The phototherapy lamp simulating sunlight has a certain therapeutic effect on SAD and the blue spectrum has a good effect on it. The blue light mode of this product is more effective than the white light mode on the market improving the quality of sleep and helping people get enough rest. Note: The product should be used during the day and use at night may cause insomnia. (Product principle: use it during the day to inhibit melatonin. At night the body will produce more melatonin to help people sleep)