DescriptionThis magical cells based on the Peltier effect are capable of generating electric power. The SP1848-27145 40x40mm Thermoelectric Power Generator TEG 150°C Peltier Module operates maximum up to 150°C which will give you different voltage and current outputs at different values of temperature.Thermoelectric Power Generators also are known as TEG or Peltier module create a detects temperature differential on each side. You can take the advantage of this temperature differential detection to generate electricity.After applying the heat on one side and cold on other side the device will start generating the voltage which depends upon the value of applied heat. The SP1848-27145 40x40mm Thermoelectric Power Generator TEG 150°C Peltier Module will generate the moderate amount of voltage with mA of current.A  Thermoelectric Generator (TEG) module is a semiconductor-based electronic component that functions as a small generator. Operating Tips:Do not exceed the maximum operating temperature of the module.Life expectancy: 200,000 hours.Failure rate based on longtime testings: 0.2%.Important Note!! MODEL NUMBER SIDE IS EXPOSED TO “HEAT-SINK or ICE” AND OPPOSITE SIDE TO “HEAT“.Place 2-3 drops of grease compound on both sides of TEG Module FeaturesSmall size,Light weight, long life,No moving parts, easy to move,High reliability and no pollutionColding side posts with the wordsHeating side is emptyRed wire to positive, black wire to the negative, it generate electricity when the temperature difference happenedSpecificationsModel：SP1848-27145Color ：whiteLead Length: about 30CMSize: 40MM * 40MM* 3.4MM20 degree temperature difference: open-circuit voltage 0.97V, generated current: 225MA40 degree temperature difference: open circuit voltage 1.8V, generated current: 368MA60 degree temperature difference: open circuit voltage 2.4V, generated current: 469MA80 degree temperature difference: the open circuit voltage 3.6V, generated current: 558MA100 degree temperature difference: open circuit voltage 4.8V, generated current: 669MA