Peltier elements in cool terrariums

[King of diamonds]

As you may be aware, a peltier element is a small electronic component that grows cold when current is applied. This is the cooling system found in most travel fridges and small wine fridges.

They aren't very powerful but they seem ideal for lowering temperature by a few degrees and are very cheap ($3.95 shipped on ebay), just throw on a pc fan.

I have seen a number of users storing cool growing plants in wine fridges but I am wondering if it is common to buy the elements themselves.


Sorry if this is a stupid question, I'm fairly new and was directed here from the beginner board.