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Review title: Poor quality. Broke after a short use.
Product review: The unit works great when it works. However, it stops working after a few uses. Checked couple 1-star comments. One had disassemble the unit and found the fuse good. I had disassemble the unit. The AC input of the transformer has open circuit. Most likely, the input is burnt after an inflation of an air castle. The DC input still works. But it is very unconvenient every time to inflate a basket ball, I have to bring it to a car.
