---
product_id: 352537912
title: "BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40)"
brand: "bolsen"
price: "€ 48.57"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/352537912-bolsentec1-12704-12703-12706-12740-tes1-12701-tec1-12705fx-tec1
store_origin: SK
region: Slovakia
---

# Power-efficient Instant heating Rapid cooling BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40)

**Brand:** bolsen
**Price:** € 48.57
**Availability:** ✅ In Stock

## Summary

> ❄️ Cool it Down, Heat it Up! The ultimate thermoelectric solution.

## Quick Answers

- **What is this?** BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40) by bolsen
- **How much does it cost?** € 48.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/352537912-bolsentec1-12704-12703-12706-12740-tes1-12701-tec1-12705fx-tec1)

## Best For

- bolsen enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Overall dimensions of 40x40mm or 30x30mm, fitting seamlessly into your tech setups.
- • **Durable Wiring:** Equipped with 300mm lead length, ensuring reliable connectivity.
- • **Optimal Performance:** Requires a heat sink for maximum efficiency and longevity.
- • **Versatile Applications:** Perfect for CPU coolers, alternate power sources, and DIY projects.
- • **Chill or Heat in a Snap!:** Get ice cold in minutes or heat to boiling with a simple polarity switch.

## Overview

The Bolsen TEC1-12704 series thermoelectric cooler is a versatile semiconductor refrigeration unit designed for rapid temperature control. With dimensions of 30x30mm or 40x40mm, it can efficiently cool or heat by reversing polarity, making it ideal for various applications, including CPU cooling and DIY energy solutions. Ensure optimal performance by pairing it with a heat sink.

## Description

BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40)

## Features

- TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler refrigeration 30X30/40X40 Thermoelectric Cooler Peltier of semiconductor refrigeration
- Get ice cold in minutes or heat to boiling by simply reversing the polarity, used for numerous applications from CPU coolers to alternate power sources, or even for your own
- Overall dimensions: 40*40*4.0mm/30*30*3.0MM element TEC1-12706 12704 12705 12708 12709 12710 12712 12715
- Wire specification: lead length 300 + 5mm RV standard wire single head 5mm tin plating
- These devices must be used in conjunction with a heat sink to avoid burned

## Product Details

- **Brand:** Bolsen
- **Cooler heat-sink material:** Aluminum
- **Mounting type:** Panel Mount
- **Manufacturer:** Bolsen

## Images

![BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40) - Image 1](https://m.media-amazon.com/images/I/51gq6R09D9L.jpg)
![BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40) - Image 2](https://m.media-amazon.com/images/I/51FfNXdvkrL.jpg)
![BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40) - Image 3](https://m.media-amazon.com/images/I/5134ryvbNBL.jpg)
![BolsenTEC1-12704 12703 12706 12740 TES1-12701 TEC1-12705FX TEC1-19912 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration 30X30/40X40 (1PCS TEC1 12705FX 40X40) - Image 4](https://m.media-amazon.com/images/I/51CqBDDngwL.jpg)

## Available Options

This product comes in different **Style** options.

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**Shop now:** [https://www.desertcart.sk/products/352537912-bolsentec1-12704-12703-12706-12740-tes1-12701-tec1-12705fx-tec1](https://www.desertcart.sk/products/352537912-bolsentec1-12704-12703-12706-12740-tes1-12701-tec1-12705fx-tec1)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-03*