---
product_id: 488602685
title: "Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40)"
brand: "bolsen"
price: "€ 20.02"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/488602685-bolsen-tec1-12704-12703-12705-12706-12740-12715-tes1-12701
store_origin: IE
region: Ireland
---

# Reversible polarity for heating/cooling Compact 40x40x4mm size Rapid cooling in minutes Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40)

**Brand:** bolsen
**Price:** € 20.02
**Availability:** ✅ In Stock

## Summary

> ❄️🔥 Flip the switch: chill or heat your world in a flash!

## Quick Answers

- **What is this?** Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40) by bolsen
- **How much does it cost?** € 20.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/488602685-bolsen-tec1-12704-12703-12705-12706-12740-12715-tes1-12701)

## 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

- • **Plug & Play Ready:** Standard 300mm lead wire with tin plating for easy integration
- • **Compact Powerhouse:** Sleek 40x40mm design fits seamlessly into your tech setup
- • **Heat Sink Compatible:** Optimized for use with heat sinks to maximize performance and durability
- • **Versatile Application:** Perfect for CPU cooling, DIY projects, and alternative energy solutions
- • **Instant Ice-Cold or Boiling Heat:** Flip the polarity and switch from chilling to heating in seconds

## Overview

The TEC1-12709 is a compact 40x40mm thermoelectric cooler that rapidly cools or heats by reversing polarity. Ideal for CPU cooling, DIY electronics, and alternative power projects, it features a 300mm lead wire with tin plating and requires a heat sink for optimal performance and longevity.

## Description

Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40)

## Features

- TEC1-12709 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 .2PC TEC1-12709 (40*40)
- 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

- **Product dimensions:** 40L x 4W x 40H millimeters
- **Brand:** Bolsen
- **Power connector type:** 3-Pin
- **Voltage:** 12 Volts
- **Wattage:** 60 watts

## Images

![Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40) - Image 1](https://m.media-amazon.com/images/I/41HzTu6gtbL.jpg)
![Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40) - Image 2](https://m.media-amazon.com/images/I/51sX9q24bSL.jpg)
![Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40) - Image 3](https://m.media-amazon.com/images/I/41ekheH57fL.jpg)
![Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40) - Image 4](https://m.media-amazon.com/images/I/51iaBqLdTXL.jpg)
![Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40) - Image 5](https://m.media-amazon.com/images/I/51iaBqLdTXL.jpg)

## Available Options

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

## Frequently Bought Together

- Bolsen TEC1-12704 12703 12705 12706 12740 12715 TES1-12701 TEC1-12705FX TEC1-19912 TEC2-19003 TEC Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12709 (40*40)
- 4PCS Heatsink 40mm x 40mm x 20mm/ 1.57"x1.57"x0.79" Aluminium Heatsink Kit Sync Cooler Cooling Fins for Electronics Computer VRM Led Memory Chip Peltier Module 3D Printer Stepper Motor (40x40x20mm)
- Bolsen TEC1-12703 Thermoelectric Cooler Peltier of semiconductor Refrigeration,2PC TEC1-12703 (40 * 40)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/488602685-bolsen-tec1-12704-12703-12705-12706-12740-12715-tes1-12701](https://www.desertcart.ie/products/488602685-bolsen-tec1-12704-12703-12705-12706-12740-12715-tes1-12701)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-22*