I received the TEC system that I ordered from Alibaba (China) for $19 (free postage). Photos are attached. I ran a test this morning and it works (which is a surprise given the drink can cooler I bought previously that did not work at all).
Anyway in the few short minutes I tested it (ambient was 30C) , the cold side (small fan side) dropped quickly to 20C and the hot side went up to 32C. I suspect the cold side would have been much better if it was actually boxed in as the ambient was flowing around the sink. I will get it boxed in foam for the next test, then work out how to attach the cold side to my cold finger from the laptop.
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