4 Chip Thermoelectric Cooler Peltier Module 12V Semiconductor Water Chiller Air Cooling Device for DIY Refrigeration System

Working good

works

Depending on your application, the air side dissipation can't keep up with the water side. Make sure you're aware of how Peltier devices work and the impact of thermal impedance and mass. My application was a water chiller, but effectively the thermal mass of the water was too high for the little heataink so it just turned into a space heater. It might work better as an air chiller.

420, Hydro growers here I have a 1xpeltier chip module going right now to chil my 85L of hydro water down to 16C. Let me tell you, these peltiers really do cool water down, but it's better to have it on a closed loop system and going through a wort chiller suspended in your resevoir. This way the heat reansfer is radiant instead of just dumping the chilled water back in to the warmer water. I ordered this unit 5 days ago and it arrived. It looks really really well made, the ONLY complaint i have anout it would be that the FANS on the heatsink look to be rather UNDERPOWERED. I will have to try it out and see for sure, but thats just based on speculation alone so who knows.

This cooling system produces too much heat, and the cooling fans are very weak. 2 of the fans don't work out of the box. I replaced with stronger fans but still not sufficient. It raises the temperature of the liquid that it supposes to cool about 5F.

if your intention its for cooling forget about this set up, the heatsink its way to small and the fans don't do anything so the heat its way to high to the block if you buy keep on mind you will need a big heatsink like 200mmx150mmx36mm with a 120mm, 4400rpm fan blowing to the heat sink this way you will get some good cooling.