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Colding side posts with the words Heating side is empty Red wire to positive, black wire to the negative, it generate electricity when the temperature difference happened
20 degree temperature difference: open-circuit voltage 0.97V, generated current: 225MA 40 degree temperature difference: open circuit voltage 1.8V, generated current: 38MA 0 degree temperature difference: open circuit voltage 2.4V, generated current: 49MA 80 degree temperature difference: the open circuit voltage 3.V, generated current: 558MA 100 degree temperature difference: open circuit voltage 4.8V, generated current: 9MA