LED Technologies, LLC manufactures the DPL Therapy system for the treatment of pain, relief of muscle & joint aches, sprains, back pain & stiffness associated with arthritis.The 154 deep penetrating infrared diodes penetrate into our bodies pass the skin and into our muscle tissue. DPL light therapy increases circulation and blood flow: reducing inflammation, decreasing pain, and accelerating the healing process. Light therapy is safe, non invasive, drug free and you will find quick relief. DPL Therapy can be used in bodywork as an enhanced therapy option but is truly designed as an in home over the counter therapy device. 510k FDA cleared