With this SnackMaster deluxe cooler and warmer you can keep your favorite food and drinks cold or keep preheated foods warm while on-the-road. Simply plug into your truck 12-volt socket and go. Choose the setting for cooling food or choose the setting for warming food. The clear plexiglass door allows you to see what you need before opening. The interior light illuminates for better visibility inside a truck cab or low-visibility setting. You can push the light switch on or off. The seat belt slots allow you to keep the unit secure while driving. This 12V electric refrigerator can be used vertically or horizontally and makes eating healthy on the road an easier task. Pack your own food for tailgating and camping or for long hauling. The shelf in this family-sized portable cooler and food warmer is removable so you can maximize storage space. This is similar to a refrigerator for truckers with a current draw of 4.2A 51W however this is a thermoelectric cooler. The cooling ability is in relation to surrounding air temperature. It will get up to 30-degrees F below its surrounding air temperature. With a flip of the switch this 12 volt cooler for vehicles functions as a food warmer to heat up precooked foods. This is a great trucking accessory for professional truck drivers as well as a personal plug-in cooler and food warmer for cars.