I was editing my above post while you were applying but I think I answered my self.
If I am reading the product specs properly then that one draws 3 amps. The larger 136.8W one draw 9 amps.
http://cgi.ebay.com/45-6W-TEC-Thermo...3A1%7C294%3A50
http://cgi.ebay.com/136-8W-TEC-Therm...3A1%7C294%3A50
That is a little less than what it calculates out to be...