It has semi-conductor cooling, with a fan, without a hinged lid. It has semi-conductor cooling, with a fan, without a hinged lid. The advantages of semiconductor cooling are absolute safety, environmental protection and low carbon, and efficient cooling. without any fluid coolant and welded pipe fittings, there is no potential danger of leakage and there is no need to worry about the quality of the weld and the density or corrosion of the pipe fittings, so there is no danger safety potential. that it can be said that it is safe.