1. Capacity: 40L 2. Energy saving design 3. Environmentally friendly 4. CE Certification... Portable Solar Powered Refrigerators This product is energy saving, easy to carry, easy to operate, with the dual function of cooling and heating,No electricity, there are solar panels, 12V car charger, you can rely on to maintain 2-3 hours of battery power, is the home of tourism, medical transportation, ...