Here is a solar cooler that keeps your food cold for over 10 hours without needing you to add ice. It has 45L capacity and 2 refrigeration zones. It has a temperature range of -4 to 68F. This cooler has 12V & AC backup power option.
More gadgets like this: here
This solar cooler has room for 60 beer cans, meats, medicine, frozen treats, and everything in between. It has an easy to use control panel but you can also set the temperature from your phone.
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