Speed 1 is the most energy efficient, but is only suitable for summer.

Winter, because the ambient temperature is lower, so the power consumption is very small, you should turn up the gear is right.

This mechanical refrigerator thermostat, the digital size of the gear does not represent the specific temperature, because the seasonal ambient temperature changes greatly, so according to the seasonal ambient temperature to adjust the size of the digital gear to the right. Take the 7-speed thermostat as an example, in summer, adjust the small (1-3 gears), in winter, adjust the large (4-7 gears), spring and fall in the middle of the gears (3-4 gears) is more appropriate. This will ensure that the temperature inside the refrigerator remains within the normal range, both the freezer at about -18 degrees, the freezer between 4-8 degrees. This is not only conducive to food freezing and preservation, but also relatively energy-saving, can avoid the occurrence of various failures, effectively extend the service life of the refrigerator.

If there are special requirements for the preservation of things, you can put into the refrigerator a temperature gauge to actually measure. If the temperature is high, put the gear larger. If the temperature is on the low side, turn the gear down some, so that the temperature inside the refrigerator to reach the temperature range you need on it.

If you need to quick-freeze the food, you can temporarily adjust the gear temporarily to the highest grade (7 gears), but do not exceed 4 hours, otherwise it will lead to a long time overload compressor does not stop, not only consume a lot of power, but also damage the compressor, triggering failures, shorten its service life.