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