Features: Deep red 660nm is the most suitable wavelength. We have made it possible to perform simple train just by basking in the light at home. This red light devices delivers higher than 80mw/cm2 at the surface, and about 60mw/cm2 at a distance of 6 inches. The goggles have been provided for your convenience and comfort. It will create excellent experience for you and bring you enjoyable environment! You can enjoy your light time quality at any time and anywhere instead of going to the beauty salon and paying the expensive cost every time.