When semiconductor materials are exposed to an electric field, the outer electrons of atoms absorb electrical energy and transition from the ground state to the excited state. When the unstable excited state electrons fall back to the ground state, they release energy outward.
The special structure of the new semiconductor heating technology enables the transition electrons to release far-infrared spectral lines with a specific wavelength and thermal effect outward, with a wavelength range of 4μm-20μm (the spectral lines in this range are medically called "life light waves" and are beneficial to health).