Photonic bed should not be used for a long time during use, and it is best to use it for 30 minutes to 60 minutes. The principle of photon bed is that the amount of photons generated by far infrared rays and electromagnetic radiation can increase the temperature of various organs of the body, thus accelerating the metabolism of cells, discharging toxins and wastes deposited in the body, and achieving the effect of health care, but don't use it for too long.