Reefer containers are bottom air delivery units designed to distribute chilled air from the floor, via specific T-shaped decking. They allow a consistent and uniform supply of air across the entire shipment and ensure a perfect air exchange with the goods. A Genset (or generator) is usually attached to a reefer and provides the container with cooling/ electricity. It is a combination of a fuel-powered and electric powered generator because it is used on both transportations overseas and on the road by a truck.