"Cooling Fan Manufacturer" semiconductor refrigeration system including square copper heat sink, thermo electric cooling modules, heat insulation materials and fins. After power semiconductor module will form the cold side and hot side heat sink side of the heat source is connected on one side to connect semiconductor cooling module cold side, copper heat sink has a role in cold storage, "Cooling Fan Manufacturer" led down light price so cold junction temperature uniform heat to the cold end of the heat absorbed by the heat source side, the hot end of the cooling fin array is connected to the heat by convection and radiation fins emit into the air, so in a timely manner on the heat source distribution. "Cooling Fan Manufacturer" filled with insulating material in semiconductor cooling module position in contact with air, and prevent the cold junction temperature is too low resulting in condensation of water vapor in the air to form water, the impact of lighting and insulation properties of the ink jet printing.