Thanks to their low weight, thermoelectric coolers are particularly easy to carry and transport. Their astonishing cooling capacity of up to 30°C below the ambient temperature is more than sufficient for most purposes, including car journeys, camping or picnics. Thermoelectrics offer a welcome bonus: most of the coolers equipped with this wear- and maintenance-free technology can be used for both cooling and heating. Cost-efficient and reliable, thermoelectric energy is “just right” for small and medium-size portable coolers.