---
product_id: 5824432
title: "Thermoelectric Generator, Peltier Cooler Demo Kit"
brand: "lethan corporation"
price: "12949 kr"
currency: ISK
in_stock: true
reviews_count: 9
category: "Lethan Corporation"
url: https://www.desertcart.is/products/5824432-thermoelectric-generator-peltier-cooler-demo-kit
store_origin: IS
region: Iceland
---

# Thermoelectric voltage output Dual water reservoirs included Heat-to-electricity conversion Thermoelectric Generator, Peltier Cooler Demo Kit

**Brand:** lethan corporation
**Price:** 12949 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Turn heat into power — ignite your curiosity with silent energy innovation!

## Quick Answers

- **What is this?** Thermoelectric Generator, Peltier Cooler Demo Kit by lethan corporation
- **How much does it cost?** 12949 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/5824432-thermoelectric-generator-peltier-cooler-demo-kit)

## Best For

- lethan corporation enthusiasts

## Why This Product

- Trusted lethan corporation brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Visual Feedback:** Watch the fan spin as the temperature gradient powers mechanical motion.
- • **Complete STEM Learning Kit:** Includes dual plastic reservoirs and detailed instructions for hands-on exploration.
- • **Harness the Seebeck Effect:** Convert temperature differences directly into electrical energy with precision.
- • **Silent, Maintenance-Free Operation:** No moving parts means whisper-quiet, reliable performance for years.
- • **Explore Renewable Energy Innovation:** Ideal for professionals and educators eager to demonstrate cutting-edge thermoelectric tech.

## Overview

This Thermoelectric Generator Demo Kit transforms heat energy into electrical and mechanical energy using the Seebeck effect. Featuring a thermocouple sandwiched between aluminum conductors, it operates silently with no moving parts. The kit includes two plastic reservoir cups to create temperature gradients, powering a fan to visually demonstrate energy conversion. Perfect for STEM education and renewable energy enthusiasts, it offers a hands-on experience with a technology used in NASA’s Voyager missions.

## Description

Thermoelectric generators are devices that convert heat energy into electricity. This device utilizes a thermocouple sandwiched between 2 aluminum conductors (the aluminum "legs" you see in the product photo). A thermocouple is formed when two electrical conductors composed of dissimilar materials, come in contact with each other. Thermocouples are able to generate voltages through a process called the thermoelectric effect. The underlying principle behind thermocouples, the thermoelectric effect, was discovered by Thomas Johann Seebec. The thermoelectric effect, sometimes called the Seebec effect, occurs when a thermal gradient is applied to a conductor and produces an Electromotive Force generated across the gradient. The magnitude of the Electromotive Force is a function of the temperature differential applied. This smart little demo is designed to be immersed in 2-3" of water, each "leg" being immersed in a separate cup (2 clear plastic cups included). Immerse the generator in cups of water of equal temperature, and nothing happens. Immerse the generator in cups of water with a substantial temperature gradient (hot or cold), and the fan will begin to spin. Has 4mm input/output terminals and switch to redirect electricity to a meter for measurement, allowing the user to monitor temperature gradent and output data. A truly wonderful and facinating device. A must have for those interested in exploring alternative / renewable energy sources. Comes with complete instructions and sample questions for students. Background: Unlike traditional dynamic heat engines, thermoelectric generators contain no moving parts and are completely silent. Such generators have been used reliably for over 30 years of maintenance-free operation in deep space probes such as the Voyager missions of NASA. Compared to large, traditional heat engines, thermoelectric generators have lower efficiency.

Review: Great demonstration model of Thermoelectric (Seebeck) Effect - I present science demonstrations to homeschoolers and small private schools in my local area and this product is a perfect addition to my collection of science demonstration items. I've uploaded photos showing this item from different camera angles and close up. It will take some time (maybe a minute) for the heat to travel along the aluminum strip from the warm/hot water in one plastic reservoir up to the thermoelectric module sandwiched between the two aluminum strips and, conversely, travel away from the thermoelectric module to the other plastic reservoir which contains ice water. However, if you don't have the patience for waiting you can press the flat side of an ice cube directly to one of the two aluminum strips at the area that the aluminum strip is in contact with the thermoelectric module and the motor will instantly start running! Once you have heated and/or cooled the aluminum strips you can remove the source of hot or cold and it will continue to run the motor until both strips of aluminum approach an equilibrium in temperature and this time can be in minutes depending on the initial temperature difference of hot and cold sources. When demonstrating this to students you should make them aware that thermoelectric power generation has limited applications due to the very low efficiency of converting one form of energy into electricity compared to most all other means of generating electricity including solar (photovoltaic) cells which run around 15% efficiency. A lot more energy was used to make hot water for the hot water reservoir and removed from water to make ice cubes for the cold water reservoir than what you will get back in the form of electrical power from the thermoelectric module. But in cases where there is "free" heat energy, like geothermal (hot underground water sources) or the waste heat from a car engine or the human body this technology can provide enough power to do useful work.
Review: One Star - Doesn't work

## Features

- Transforms Heat Energy to Electrical Energy to Mechanical Energy
- 2 Plastic Reservoir Cups Included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003FJ6I0Y |
| Customer Reviews | 4.0 4.0 out of 5 stars (18) |
| Date First Available | April 5, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12.8 ounces |
| Manufacturer | Lethan Corporation |
| Package Dimensions | 16 x 10 x 3.5 inches |

## Images

![Thermoelectric Generator, Peltier Cooler Demo Kit - Image 1](https://m.media-amazon.com/images/I/41WPw23dvTL.jpg)
![Thermoelectric Generator, Peltier Cooler Demo Kit - Image 2](https://m.media-amazon.com/images/I/51abi0UoybL.jpg)
![Thermoelectric Generator, Peltier Cooler Demo Kit - Image 3](https://m.media-amazon.com/images/I/51tevKJXqoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great demonstration model of Thermoelectric (Seebeck) Effect
*by D***A on June 7, 2012*

I present science demonstrations to homeschoolers and small private schools in my local area and this product is a perfect addition to my collection of science demonstration items. I've uploaded photos showing this item from different camera angles and close up. It will take some time (maybe a minute) for the heat to travel along the aluminum strip from the warm/hot water in one plastic reservoir up to the thermoelectric module sandwiched between the two aluminum strips and, conversely, travel away from the thermoelectric module to the other plastic reservoir which contains ice water. However, if you don't have the patience for waiting you can press the flat side of an ice cube directly to one of the two aluminum strips at the area that the aluminum strip is in contact with the thermoelectric module and the motor will instantly start running! Once you have heated and/or cooled the aluminum strips you can remove the source of hot or cold and it will continue to run the motor until both strips of aluminum approach an equilibrium in temperature and this time can be in minutes depending on the initial temperature difference of hot and cold sources. When demonstrating this to students you should make them aware that thermoelectric power generation has limited applications due to the very low efficiency of converting one form of energy into electricity compared to most all other means of generating electricity including solar (photovoltaic) cells which run around 15% efficiency. A lot more energy was used to make hot water for the hot water reservoir and removed from water to make ice cubes for the cold water reservoir than what you will get back in the form of electrical power from the thermoelectric module. But in cases where there is "free" heat energy, like geothermal (hot underground water sources) or the waste heat from a car engine or the human body this technology can provide enough power to do useful work.

### ⭐ One Star
*by A***R on April 14, 2016*

Doesn't work

### ⭐⭐⭐⭐⭐ Perfect.
*by E***H on July 3, 2017*

Works perfectly right out of the box. Cold water on one side, hot water on the other, after a few minutes the thermoelectric gradient is transformed into mechanical work and the fan starts to spin. Multimeter ports on the outside allow for easy testing of current volts with a multimeter. Will buy again. Excellent example of the Seebeck and Peltier effects.

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-09*