The Head Red Light Therapy Head Wrap combines 3 light wavelengths of red light (650nm), near infrared light (810nm) and deep penetrating near infrared light (1050nm).As a comfortable tool for targeted cellular healing, cognitive function, and brain health, this red light therapy head wrap contains 450 hard working Led light chips to provide light therapy and light coverage over the forehead, top, sides and back of the head. You may opt to use the head wrap (when flat) on other body areas as well. Wireless, ultra low Emf and Very affordable red light therapy hat? We did it.