3 Sets TEC1-12706 Peltier cooler module kit 6A 12V Cooling panel + Aluminum Heat Sinks + 12V Cooling Fan

I accidentally left a poor 2-star review because I thought there were only two heat sinks in the box instead of three, which I needed. It turns out that if you lift one of the heat sinks, you’ll find another nested inside to save space. I apologize for any trouble my mistaken review may have caused.

Great Module Kit

seems pretty good for my needs but when i applied voltage to the cooling device it felt cold for a moment then got very hot

They burn out if you use the voltage and amps in the description. They have calculated watts wrong! There is inconsistency in the numbers. You crank these up to what they state they burn out and heat well above the temperature that can give you serious burns.

Great teaching set for my 9yo twins as it has everything you need to demonstrate the thermoelectric effect as long you have standard teaching tools for science and engineering. For teaching here’s what else you need/want to demonstrate full functionality: A 12 or 24 volt DC power source (ex: car battery) A contactless thermometer A multimeter A dual-probe thermometer that can simultaneously measure, chart, and display two temperatures Something fun to heat or cool, we did my kids water bottles and my coffee cup to show how you can heat and cool at once A hot and cold source (ice water and coffee as above) to show this running “backwards” and generating electricity.