Thermoelectric coolers (TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side gets cool. Therefore, they can be used to either warm something up or cool something down, depending on which side you use.
There are 127 couples in a single module; 40mm x 40mm size module is a single-stage module which is designed for cooling and heating up to 90°C applications. Also Known as Thermoelectric cooling modules, Thermoelectric modules, Peltier modules, Thermoelectric cooling module.
If you want to get a bigger system Ling, it is recommended that two cooling modes, with two stacks up with the above, a grim absorption following a fever, the experiments prove two refrigeration effect is much better than the single-stage, the condition can choose three, of course, have a large power supply support. Package included: 1x TEC1-12706 Thermometric Cooler
How To Use
Power ON the device only with proper Heat-sink setup to avoid any burning/damage or malfunction of the device!
Use a good quality heat sink (such as in CPU fans) with thermal paste and power the device
Use a 12V Dc Power supply to power the TEC1-12706
Use ONE AA battery for 10- 20 seconds to power ON the device to find the hot /cold side
Warning:
The hot surface of the TEC must be attached to a suitable FAN SINK (60x60x40+mm) that can carry away both the heat pumped by the TEC plus Joule heat from the electric power supplied to the TEC.
A heat sink rise of 15C above ambient is typical for many TEC applications. Otherwise, a bigger heat sink must be used to reduce the temperature.
Care should be taken when applying pressure during installation. Uniform pressure is desired across the mounting surfaces. If uneven pressure is applied, thermal performance may be reduced, or damage may occur to the TEC.