model:TEC1-12701,12702,......12709 size(mm):15*15,20*20,.....50*50,55*55 welding temp:125-200C deliverability:100,000/month Products features:Thermal electric module, is also called thermoelectric cooling module, electric cooling or heat pump.1. The product runs no mechanically, so no noise, no vibration, no wear, long working life and strong reliability.2. Small size, light weight, fast cooling, ...