Traditional Culture Encyclopedia - Photography major - Why are some refrigerator defrost switches minus 7 degrees and some minus 14 degrees?

Why are some refrigerator defrost switches minus 7 degrees and some minus 14 degrees?

The reason is that the lower the negative temperature value of the switch, the stronger the refrigeration performance, the faster the cooling and the faster the frost prevention. On the contrary, the refrigeration may take longer and frost may occur more easily. In addition, the use mode and frequency will also affect the refrigeration effect and defrosting frequency of the refrigerator, so it is necessary to choose the appropriate model and temperature setting according to the actual situation and personal needs.