This invention relates to a portable temperature controlled container comprising a body having a storage compartment, an opening to permit access to the storage compartment and an insulated lid. The container comprises a fan, a heat sink and a thermoelectric device, as well as a first phase change material and a thermoelectric device in thermal communication with both the first phase change material and the storage compartment. The thermoelectric device in thermal communication with both the first phase change material and the storage compartment is operable to remove energy in the form of heat from one of the storage compartment and the first phase change material and transfer that energy in the form of heat to the other of the storage compartment and the first phase change material. In this way, the device will require less power, be highly robust, will operate across a range of temperatures, and will be cost effective to manufacture.
