AIRHEAD’s new 12 Volt Hi Pressure Air Pump w/ Pressure Release Valve produces 3 times the pressure of other 12 volt air pumps. Adapters are provided for all popular valves including stem, Boston, Leafield, Bravo, Hulkey Roberts and more. A removable pressure release valve limits the output to 1.4 psi, the perfect inflation pressure for towables. This powerful pump draws too many amps to plug into a cigarette lighter. Hook it up to your car, truck or boat battery with the alligator clips connected to a 10 foot power cord. Volume: 410 liters/min. Draws 28 amps.