- Sealed ceramic thermoelectric element: a single-layer, double-sided ceramic structure with an alloy semiconductor material inside that directly converts a temperature difference into electrical energy. - High reliability and clean operation: red wire is positive and black wire is negative; generates current whenever there is a temperature gradient. - Flexible electrical connections: practical applications use a multi-parallel configuration to increase output voltage and load current. - Color coded leads for easy polarity identification: 14 cm cable length; red (+) and black (-); clearly identified polarity with color coded conductors. - Practical use scenarios: - Harvest waste heat from engines, motors, hot surfaces, or industrial equipment to power small sensors or charge compact storage devices. - Power remote sensing or IoT devices by exploiting ambient and thermal gradients in environments such as solar thermal setups, building monitoring, or refrigerated systems. - Demonstrate thermoelectric energy conversion in educational settings or DIY prototyping for low-power electronics.