Infrared Light Therapy, or photo-biomodulation, is a unique therapy that harnesses the healing powers of infrared light. It emits specials wavelengths of light energy that dramatically increase circulation to injury sites and areas of chronic pain. The result is a rapid relief of discomfort, improvement in sensation, and regeneration of damaged tissues.. The greatest physiological responses are achieved through a unique combination of power, wave length, duty cycle, viewing angles, voltage, frequencies, LED densitysq.cm and overall coverage.