OK thanks for the feedback on that particular unit. I'll keep it on my list for future purchases.I am using a 45L refrigerator. So far, I feel good. The cooling is fast, the compressor is quiet, and the power is not high. It is ok to use the car's 12V. If you want to talk about the shortcomings, maybe it is a little heavy! In the hot summer, my children and I cannot lack of Coke.