Severin KB 2921 25 liter cool box

The box is of good quality and processed in compliance with the technical cooling method, extremely effective.
My cooling test was conducted at an ambient temperature of 22 degrees.

Supply 220 volt
Box empty, indoor temperature 22 degrees
After 1 hour 12 degrees
After 2 hours, 10 degree
After 3 hours, 8 degrees
After 6 hours, still 8 degrees.

Now I have the box with uncooled beverages (10 x 1 liter Tetra Pack) filled.
After 1 hour, 20 degrees
After 2 hours, 19 degrees
After 3 hours, 18 ° C
After 6 hours, 15 degree
After 12 hours, 13 degrees

And now the 2nd test at an ambient temperature of 33 degrees in the shade.
Supply 220 volt
Box empty, indoor temperature 33 degrees
After 1 hour, 20 degrees
After 2 hours, 19.5 degrees
After 3 hours, 19 degrees
After 4 hours, 18.5 degrees
After 5 hours, 18 ° C
After 6 hours, 17 degree
After 7 hours, 15 degree

Conclusion:
The box is certainly not a substitute for a fridge, but even non-refrigerated drinks are cooled at a maximum filling, overnight at a comfortable temperature.
However, the manufacturer's instructions seem "cools up to 20 degrees below ambient temperature" only when outdoor temperatures apply. In my test, she managed to 18 degrees below 33 degrees ambient temperature.

Fan noise is heard, but not really disturbing.

Internal height 34 | Width: 32 | Depth: 22
Gives a liter measure of just under 24 liters
But it is still the fan body to withdraw, as it extends from the lid into the space perception.

I then repeated with a 12-volt converter to test on the 12 volt connection and had received the same cooling results.

The "smell" was after 1 and damp wipe disappeared day.

Since I can not draw any comparisons to other coolers, I am absolutely satisfied with this box in accordance with the technical cooling method and performance, and can only fully recommend the Box.