1 side gets warm and the other side will loose temperature making it cooler. Thus, they may be employed to warm up something or cool down something, depending on which side you utilize. You might make the most of a temperature differential to create electricity.
This Peltier works well provided that you remove heat from the hot side. After turning to the apparatus, the sexy side will heat fast, the chilly side will chill quickly. If you don't get rid of the heat from the other hand (using a heat sink or other apparatus), the Peltier will immediately attain stasis and do nothing. We recommend using a classic house CPU heatsink or a different block of alloy to pull heat from the hot side. We could utilize a pc power supply and CPU heatsink to create the chilly side so uneasy we couldn't hold our finger into it.