Cooling side is the side printed with SP1848-27145, another side is the heat absorption side.
semiconductor
Compact Peltier Mini Air Conditioner – High-Quality Cooling
High quality and DurableThe complete sealing structure isolates the moisture in the air,Using high-quality aluminum TEC1-12706 semiconductor cooling plate(The gravity of the upgraded heat sink is increased by 20%, which makes the heat dissipation stronger and smaller.)durable.
High-Performance Peltier Cooler -60W for Savings
Operates Temperature: -50C to 83C