Banggood

ok

Funciona ya con 1.5 V. Empieza a enfriar de verdad con 5 V y da el máximo a 12 - 13 V. Es importante montar un radiador de cobre y de dimensiones generosas en el lado caliente. Con 12 V he conseguido de -15 ºc a -17 ºC en el lado frío. Como generador de corriente, funciona pero lógicamente genera muy pocos mA.

@12 volts with fan running, It only use 3 + amps. You just need to use a better HSF. Stock/generic HSF from Intel/AMD cpu is Not enough to draw the heat.

This is a great unit but it's output as a voltage generator is not what is presented in the description. I have put large temperature differences across the unit and it never generates a voltage over about 0.8V. I needed 2 units in series to power a 5V boost converter. Once the converter triggered, the thermoelectric device did a great job of powering it and an attached LED lamp for a long time. These are high quality units, but do not generate the voltages described. In the picture, I used a ice

Pending further analysis overall quality seems good. we shall see how it performs to cool down a mini fridge!

Funciona perfectamente :) con los 5v pero le aumente el voltaje hasta 12v pero se si se recomendable

Brutally working well. It is able to work with very high efficiency at low power consumption. Good buy.

Not really efficent , but for some purpose can be usefull

Works well, but not really efficent.. Works as i should only with low currents

Funktioniert und wir bald als Ofenventilator eingesetzt