TEC1-12705 Thermoelectric Cooler Peltiers 12V 50W 77Wmax . Voltage: 12v : Umax(v):4v Voltage: 12V : Umax(V):4V . Imax(A): 5A : Qmax(W): 77W . Dimensions: 40mm x 40mm x6mm : Power Cord: 300mm1 x TEC1-12705 Thermoelectric Cooler Peltiers 12V 50W 77Wmax . Package Includes :TEC1-12705 Thermoelectric Cooler Peltiers 12V 50W 77Wmax