Thermoelectric cooling modules,thermoelectric module,peltier module TEC1-12730 Size: 50x50x3.1mm Internal resistance: 0.43 +/- 10% Imax.: 30 A Vmax.: 15.4 V Qmax.: 266.7W Tmax.: 68 degree Solder melting point: 138degree,150degree,200degree. Maximum. Compress.: 1Mpa