This product worked okay probably for the first two uses. Even then it was difficult to remove from outlet in my car. Now for the "GOOD" part, the end that goes into the outlet kept falling apart and I kept putting it back together. One day, I unplugged it, it fell apart and the spring from the inside flew into the air and landed somewhere in my friend's car. That was the end of the inverter (which was more like a puzzle because I had to keep putting it back together). I only used it about 6 times.