Good, those who can help me will thank you very much. I have a mini ice cream maker with the peltier system, which works at 10.5 volt. I put it to work and as the temperature goes down the voltage starts to go down, since it is at 15 ° it starts to go down slowly with the temperature drop inside the refrigerator. And the maximum cooling is 12 °. I do not have much knowledge in this type of refrigerator, so my question is whether this is how it works, or does it always have to work at the same voltage. Thank you