# 排列三走势图最近300 > Technical Support

## 2. What do the Parameters for the thermoelectric cooling module mean?

 I Operating Current to the TEC module (in Amps) Imax Operating Current that make the maximum temperature difference ?Tmax (in Amps) Qc Amount of heat that can be absorbed at the cold side face of the TEC (in Watts) Qmax Maximum amount of heat that can be absorbed at the cold side. This occurrs at I = Imax and when Delta T = 0. (in Watts) Th Temperature of the hot side face when the TEC module operatiing (in °C) Tc Temperature of the cold side face when the TEC module operating (in °C) ?T Difference in temperature between the hot side (Th) and the cold side (Tc). Delta T = Th-Tc (in °C) ?Tmax Maximum difference in temperature a TEC module can achieve between the hot side (Th) and the cold side (Tc). This occurrs (Maximum cooling capacity) at I = Imax and Qc = 0. (in °C) Umax Voltage supply at I = Imax (in Volts) η TEC module cooling efficiency ( %) α Seebeck coefficient of thermoelectric material (V/°C) σ Electrical coefficient of thermoelectric material (1/cm·ohm) κ Thermo conductivity of thermoelectric material (W/CM·°C) N Number of thermoelectric element Iεmax Current attached when the hot side and old side temperature of TEC module is a specified value and it required getting the Maximum efficiency (in Amps)

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