LED light therapy is really a way to help the body heal itself. The lights have specific wavelengths that are absorbed by a photo acceptor, cytochrome c oxidase within the mitochondria of the cell. The energy (photons) from the lights increases the energy within the cell and that speeds up the healing process. The lights must be specific wavelengths and must be delivered at a specific dosage. Using both red and infrared lights is beneficial because the wavelengths are absorbed by different depths of tissue. Our Equine & Canine Light Therapy Pads use two specific wavelengths that research has shown to dramatically increase the rate of healing. The two wavelengths are in the visible red and near infrared spectrums. The visible red is effective for stimulating acupuncture points, releasing trigger points, treating wounds and infections. The infrared wavelength (not visible), which penetrates deeper, has been shown to be effective in helping heal soft tissue injuries, joints and muscles