Red light therapy and NIR therapy deliver safe concentrated wavelengths of therapeutic natural light to your tissue where it reduces oxidative stress and relief your pain. All without side effects and risks. 【Red & Near Infrared Dual Light Therapy】- 660nm Red light is especially effective for promoting blood circulation and increasing collagen. 850nm Infrared light has strong ability to penetrate deeper into tissue ideal for enhancing muscle recovery boosting immunity reducing pain and inflammation. 【Large Treatment Area】- It can cover your calf muscels thigh or arms perfectly. Our light therapy pad has total 248 powerful red lights and 124 invisible infrared lights those lights will become each strong Irradiance which will penetrates deeper into tissue and is very powerful for body muscle recovery and pain relief. 【Timing Design】It features new digital control and 20-min auto off timer system. It is easy to connect the pad! Max power density is 30 mW/cm². It is a great painless treatment for pain relief! 【Flexible Portable Comfortable】The portable device can easily be wraped by velcro belt making it convenient to position and place. The surface of the lights is soft flat and comfortable for using. It is a perfect pain relief solution for home use enjoy your light anytime and anywhere!