Beginner Questions (Ask Them Here!)

Hi , I am a new member here and I am hoping that someone can help me with a humidor question . I live in Chiang Mai , Thailand and the weather gets real hot here so I assume that this is a problem for keeping cigars ?
I am thinking that a wine cooler is the best option ? I have found 4 or 5 wine coolers that I can buy here , a couple of different Sanyo's as well as a couple of Samsungs .
I hear that thermoelectric is the way to go but even after doing a lot of searching on the net , have not been able to figure out if these coolers are thermoelectric or not
So I guess my questions are :
1) Do I need to buy a wine cooler as it gets up to over 100F here in the hot season ?
2) How the hell do I figure out weather the cooler is thermoelectric or not ?
And asking the salesman here in Thailand is not the answer as very very few salespeople here have any knowledge of the product that they are selling .
These are the 4 coolers that are available in this area , any help is appreciated , thanks everyone in advance .

sanyo SBC-245K
sanyo SBC-725K
samsung rw52dass
samsung rw33ebss