what is the height of the smaller heat sink. I will be mounting this through something to keep the hot and cold sides separate through it?

The smaller heatsink is 28mm, and with the fan it’s 36mm.

Could you make this cool an outdoor pet house? What would be needed besides this to do that?

It could work as a heater but not as cold a/c. This peltier module has two sides, the big fan gives you 80% hot air, and the tiny side 20 and if that 20 goes into a non air sealed container you’ll waste your money.. good luck..

How many degrees does it cool below ambient temperature? It says 5 to 6ﾟ in description. Is that it?

We did an experiment. After 2.5 minutes, the temperature dropped 10F, and after 10 minutes, the temperature was 13.7F lower than surrounding temperature. With time goes by, the temperature tend to stabilize. However, it also depends on the insulation around the Peltier. I hope that answered your question.

what power supply should I use. any 12v? does the 12v power supply need a minimum number of amps? thanks

I believe its a max of 6a @ 12v assuming all the heat is being removed

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Description

❄️ Chill Out and DIY Your Way to Coolness!

RAPID COOLING POWER - Experience chilling temperatures in minutes, not hours.
SPACE SAVING MARVEL - Compact design fits seamlessly into any setup.
VERSATILE APPLICATIONS - Perfect for everything from pet beds to wine cellars.
WHISPER QUIET OPERATION - Enjoy a serene environment with no noise or vibration.
UNLEASH YOUR INNER ENGINEER - Transform any space into a cool oasis with this DIY kit!

The DC 12V DIY Thermoelectric Peltier Refrigeration Cooling System Kit is a high-quality, durable cooling solution designed for easy installation and rapid cooling. Featuring a compact design and whisper-quiet operation, this kit is perfect for various applications, including computer cooling and small space refrigeration. With a maximum power of 72W, it efficiently cools without the need for refrigerants.

Reviews

H**R

Thermoelectric refrigeration cooling unit

The cooler is well built, and I bought it to play with and see if I could add it to my mini fridge when I was done. You must remember that you will need a 5 amp power supply and a temperature control module. I had it running stand alone in open air for hours turning on and off. I could not add it to my mini frig, but I still have it around for another project.

6.05.2025

J**O

Works well

The peltier works well. You can feel how cold the small heat sink gets. The large heat sink heats up pretty quickly so make sure that the large (computer fan) is always running when the peltier junction is connected to current.The only thing that needed to be adjusted was that the small fan rubs against the small heat sink and does not turn. The fan needs to be offset from the heat sink.This is not a problem in my application since I will replace the fan with another fan or larger heat exchanger

24.05.2023

J**R

Bueno

21.09.2025

P**R

How can I properly wire it without damage to the parts damage to the

Ot was not quite the system I was expecting. No instructions or specs of any kind.

27.07.2023

P**.

Poor cooling

The hot side heatsink is too small for this application. It needs to be able to dissipate the 60 or 70 watts burned by the device, causing it to run too hot. The device can only cool to a specified delta-t (the temperature difference between the hot side and the cold side), so if the hot side is too hot, the cold side isn't going to be very cold. I tested mine and after the hot side heatsink warmed up to steady state the cold side was close to room temp.

31.08.2024

D**

Works perfect

It's working properly, you just need to add a temp control or for replacement. Capacity cooling is equal to 1 feet.

6.05.2025

M**A

It's awesome 👌

Easy to use and install 👌

27.07.2025

M**S

ugh!

Bent heat sink, screws half installed, burrs & sharp edges, and no documentation.

1.03.2023

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