Product review (5 stars): the walls are thin and suck copious energy
I had been looking for a solar refrigerator for my Sprinter van for some time. I found that the 12 DC chest style freezers were not only way too expensive, but they were too large and did not hold much food stuff. I also looked at many dorm fridges that would work with my Xantrex Prowatt 2000 inverter, however, the walls are thin and suck copious energy. Other alternatives such as RV fridges cost too much. So, I purchased the Whynter freezer and gave it a trial run. The unit is very quite and uses very little power. I use  (4)  6 volt golf cart batteries, ( 2) 100 watt solar panels and a Xantrex prowatt 2000 inverter. This system powers a 600 watt microwave and a 700 watt tea kettle along with the Whynter freezer. During day light hours, the batteries charge to 12.9 to 13.3 volts with the Whynter running. after all night operation, the battery charge will maybe drop down to 12.6 volts. This is predicated on normal usage of the microwave and tea kettle during road trips etc. . If we use the microwave alot, the fridge may pull down the batteries to 12.4 volts over night. But after a full day of sun, the batteries are again at over 12.9 volts . The best option for this freezer would be to use it to freeze (2)  1 gallon water jugs, and frozen foods. The freezer does not have to be run at night with frozen juggs of water in the bottom section of the unit. The walls on this unit are twice a thick as a dorm fridge. The door seal seals tightly also.

Anyways. at $218 this fridge is top quality for the money. It has the reliability of a  beater proof a/c powered dorm fridge and will provide trouble free use compared to 12 volt DC freezer chests that cost $700. It also holds more food stuff than a chest style freezer while using way less space,  The only caveta is one has to run an inverter 24/7 which is not a problem.

The best solar fridge set up for a Sprinter van is as follows:

(2) solar word 315 watt panels
(4) 235 amp hour 6 volt costco gold cart batteries
(1) Xantrex true sign wave prowatt 2000 inverter
(1) 40 amp xantrex  battery charge controller

The Whynter freezer can be converted to a fridge with a digital tstat plug in controller.

This freezer is twice as thick as a dorm fridge and hold the cold like a champ.