Thermoelectric Heater & Cooler "PELTIER" Junction NEW LWKW-0318

The hot side of the Peltier device is connected directly to a 4.0" x 4.5" x 1.5" heatsink. The cool side connects through the aluminum block to another heatsink that is 5.0" x 5.0" x 1.25". The overall thickness of the unit is 3.8". The Peltier device and the aluminum spacer are between the heatsinks.