Medium Red Light Mat with 1188 LEDs for Comprehensive Coverage by Red Light Pro DevicesThe Medium Red Light Pad is designed to deliver focused red and near infrared light therapy in a compact and flexible format. Measuring approximately 16 in. by 11 in., the pad provides targeted coverage for specific treatment areas such as the back, knees, shoulders, abdomen, or joints. Inside the pad is a dense array of LEDs that emit dual wavelengths of therapeutic light, typically around 660 nm red light and 850 nm near infrared light. These