The ECEALT Chronic Low Back Pain Study

Inclusion Criteria: * are 18-65 years with the ability to give informed consent * report with non - specific chronic low back pain, which is defined as pain of \>3 months duration that occurs in the lumbosacral area of the spine, which may or not have the characteristics of limiting the patient's range of movements, and is not attributable to a recognizable, known pathology (e.g., infection, tumor, osteoporosis, lumbar spine fracture, structural deformity, inflammatory disorder, radicular syndrome, or cauda equina syndrome). * are experiencing pain measured using the Quadruple Visual Analogue Scale between 4 and 7 at the time of assessment will be included to keep homogeneity of pain. Exclusion Criteria: * are under 18 years, and those over 65 years of age * have had past fractures of the bone structures of the spine * have had previous surgery of the spine * have a history of previous surgery of the spine or vertebra; spondylosis, spinal stenosis, lumbar disc herniation * use pacemakers (cardiac or brain) * are pregnant, or those who plan to become pregnant during the course of the study * have acute and/or chronic cardiovascular diseases * have dermatological conditions in the area of irradiation and/or inflammatory skin lesions * have tattoo/tattoos around the area of irradiation * have any sensory deficits as defined by the World Health Organization's working definition * are sensitive/allergic to phototherapy * have neurological disorders as defined by the World Health Organization's working definition * are taking anti-inflammatories or analgesic or psychotropic medications * have any current infections * have a history of drug abuse, either recreational, over the counter or prescription over the last 3 months