Package Includes 1 Piece - TES1-12704 12V Heatsink TEC Thermoelectric Cooler Peltier 30mm*30mm Model number: TES1-12704 Voltage: 12V Couples: 127 Umax (V): 15.2 Imax (A): 4 ΔTmax(°)≥66 QM(W):36.5 W Material: Ceramics Cable length: 20cm Color: White Dimension: Approx.30mm x 30mm x 3.2mm