I am relatively new to electrical engineering, but I am making a small cooler box using a Peltier. At first, I used a Tec1-12706 without researching first, and it barely went under 12c at the cold side. I need a Peltier module that is 40mm x 40 mm that is 12v that goes to at least under 0c. I have looked at ~ 20 modules, but no matter what, none tell you how cold it can get. It just says Qmax that just says at what voltage it is when it is the coolest, but never say temperature. I don't know where to find a good Peltier, so do any of you know a good reasonably priced Peltier module that fits my qualifications.