The only 120v to 12v Revain unit in the 15A category. Reviews have been mixed but I don't have much to choose from. I needed at least a 15 amp converter to power a Viair 70p air compressor. I wanted to avoid blowing the car's fuses and draining the battery. The converter seems to work as advertised. My only criticisms: 1) The power cord was only 3 feet long. I had to use at least a 14 gauge extension cord, 2) it was very difficult to unplug the cigarette lighter plugs. I left it in place. It's expensive, and barring other competing products, I would recommend this product with reservations.