Our vitamin-D Lamp is an optimized LED that produces Vitamin-D and generates maximum vitamin-D in the body with 2.5 times more vitamin-D production efficiency than sunlight and up to 20 minutes of production time per day. Our use of vitamin-D generates enough vitamin-D, which helps with sleep disorders or insomnia, and also helps treat atopy and psoriasis. It also strengthens the bones of pregnant women and fetuses, and helps prevent and improve autoimmune diseases. As a result of the vitamin-D conversion test with dried shiitake mushroom powder, our product produced 300ug/g in 20 minutes, and we also applied for a patent for this technology. In addition, four wavelengths of UV-B (Vitamin-D3 and melatonin/ceratonin production), near-infrared (improved blood circulation) and red (improved inflammatory levels) can be simultaneously investigated, and can be switched on/off with a wireless reamer. Our vitamin-D LED lamp tested result refference Using interval 1~3times/Weekly then After 3month 120ng/ml and After 6month 160ng/ml And then After stopped during the 3month, It was kept stable at 100ng/ml.