Feature: 1. A solid piece without vibration, noise, possess long life and easy installation. Can work continuously does not need any refrigerant, there is no pollution source or rotating parts, no rotation effect, no sliding part 2. Semiconductor refrigeration film have two functions, both cooling and heating 3. The product is a current‑transducer type chip. High‑accuracy temperature control can be realized through the control of the input current. Coupled with temperature detection and control means, it is easy to realize remote control, program control, and computer control to form an automatic control system 4. The thermal inertia is very small, and the cooling and heating time is very fast, the cooling fin will reach the maximum temperature difference in less than one minute when the hot end has good heat dissipation and the cold end is empty 5. Reverse use of semiconductor refrigeration fins is thermoelectric power generation. Semiconductor refrigeration fins are usually suitable for power generation in the middle and low temperature areas Specification: Item Type: Thermoelectric Cooler Module Model: TEC1-12705 Material: Ceramic + semiconductor Purpose: Cooling Wire Specification: Wire Length: Approx. 100mm / 3.9in ±5mm, RV standard wire, single head approx. 5mm / 0.2in with tin plated Internal Resistance: 2.4~2.7Ω (ambient temperature 23±1℃, 1kHZ Ac test)Dimension: Approx. 40 x 40 x 3.6mm / 1.6 x 1.6 x 0.1inMaximum Temperature Difference: ΔTmaximum(Qc=0)>61℃ Cooling Power: Qcmaximum 45W Assembly Pressure: 85N/cm² Working Environment: Temperature range -65℃～67℃ (too high ambient temperature will directly affect the cooling efficiency) Ambient Temperature: -10℃～40℃ How to Use: 1. The working state of the refrigeration sheet is that one side is cooling and the other is heating. 2. To the left of the red line, the upper side is the hot side, and the lower side is the cold side.. Package List: 1 x Thermoelectric Cooler Module