Peltier effect
In 1834 the Peltier Effect was discovered by Jean Charles Athanase Peltier.
He connected two different metals to an electrical current. The result was a heat flow moving from one metal to another.
The conclusion was: it is possible to generate a heat flow from an electric current.
Click on images to enlarge
But the use of the effect was only feasible after the development of semiconductors types N and P in the early twentieth century, which gave rise to many technological applications.
Peltier Module
Electrical and electronic parts become hot during operation and may no longer work properly. Europeltier coolers transfer heat out of the hot environment without using coolant gases and seal the air inlet and outlet, preventing dirt from entering the cooling environment.