More info40 * 40mm TEC1-12709, semiconductor refrigeration, 12V9A cooling chip peltier Model number: TEC1-12709    Voltage: 12VCouples: 127Umax (V): 15.2 Imax (A): 9  ?Tmax( ): 67 QM(W):61.0 W                  Resistance ( ?): 1.90 ~ 2.20 Dimensions: 40x 40x 3.9(mm )