Product review (1 stars): Didn't cool to claimed temperature
We bought this, and returned it. The accompanying documentation claimed it would cool to 40 degrees. I put a bottle of water in it and a thermometer. Ran it for five hours. It only got down to 55-60. Tried again with another thermometer, just to make sure. Ran it nearly 12 hours, and it was, again, only in the 55-60 range. We were having a hot streak, so the room it was in was 80F to 85F. But if it can't keep up in an 85 degree room, it would never be able to keep up in a 120F car.