BXQINLENX TEC1-12715 Thermoelectric Cooler Peltier 40X40 Model: TEC1-12715 Dimensions : 40mm x 40mm Voltage(V):DC12V, Vmax:15.4V, Imax=15A, DTmax=68C, Qmax=136.8watts NOTE:The cold side with "TEC1-12715",another side is hot side. Working environment:-5583