365invent 5 Pcs TEC1-12704 Thermoelectric Peltier Cooler 12 Volt 40403.4mm Model: TEC1-12704 Maximum temperature:  Tmax (Qc = 0) 60 Operating current: Imax = 12 (rated voltage startup) Dimensions: 40mm x 40mm x 3.8mm Package included: 5 X TEC1-12704 Thermoelectric Cooler Peltier 12V