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A little flame should not be able to do this much. I’m using a small alcohol burner under the PiggyPower Ember, and within moments it is producing enough electricity to power a floodlight. There is no wall outlet involved, no battery hidden off camera, and no sunlight required. For this quick demonstration, I am running the Ember without its normal water cooling setup. Under regular use, water helps maintain a stronger temperature difference, which gives you better and more stable output. Even without it here, the unit is still pulling useful power from a compact heat source. That is what makes thermoelectric generation so interesting. Heat is already everywhere, especially during emergencies, camping trips, power outages, or anywhere people are burning fuel to cook or stay warm. Most of that energy normally rises into the air and disappears. The Ember gives you a way to recover part of it and put it toward something useful. Bright emergency lighting. Small USB devices. Battery charging. Fans. Radios. Pumps. All from heat that was already being produced. This is still only one small demonstration of what PiggyPower can do. As the heat source gets larger and the cooling improves, the available output grows with it. OfficialPiggyPower.com