This powerful, high-quality 12-volt inflator was designed to inflate tires FAST. And wow, does it ever! We went from 0 to 28 psi in just 2 1/2 minutes, which is about three times faster than other inflators! Don't worry about over-inflation, because there's a convenient pressure release valve. This compact unit also features a detachable LED flashlight/warning light that's very handy if tire trouble strikes at night. Stores easily in included nylon carrying case. Operates off of 12-volt vehicle current when attached to inflator body. One year warranty.