ZONHDSY hot shot board original solid hot shot system, heating elements in PTC electrothermal for high temperature or high strength optical heat wire cable. The reverse of the film on the is 2.5 cm thick, high density glass fiber board, the front covers the granular far infrared radiant coating, aluminum alloy frame by the whole sheet firm. Hot shot out 99% of the energy input plate heat shoot output, namely electric conversion efficiency is 99%. Hot shot board power density for 500-700 watts per square metre. Can use 220 v ac power or dc power supply. The surface heat temperature 70-100 oC. One heating elements for special wire cable temperature for 80-100 oC, heating elements of electrothermal surface work for PTC temperature stability in the 65-85 oC.

When in the both ends of the electrodes rated voltage applied after work, in the role of the electromagnetic field, the current through the heating element the conductors and semiconductor, form the current circuit. At the same time, electricity and heating element of ions in the collision produced heat resistance when friction, namely a heat energy.After the power supply in seconds, the average temperature of the surface from the environment temperature, increased rapidly, and the heat transfer to cover in the surface of the infrared radiant coating on the back of the heating element and thermal insulation material.Paint of radiation particles absorbed electromagnetic energy heating element,and the role of the magnetic field in the oscillations occurred the polarization,thus induced oscillating electromagnetic multipole.Then this multipole electromagnetic oscillations occur again,electromagnetic wave was shot off in all directions,form particle scattering process-----Electromagnetic radiation.After 3 to 5 minutes, the infrared radiation coating material, heating element and the insulation body reached the thermal dynamic equilibrium, far-infrared thermal radiation plate at a constant temperature proceed globe shaped nanoscale sunshine radiation.