The AC-1866 is a versatile AC/DC dual-power tire inflator that plugs into both your vehicle's 12V port and standard household AC outlets (110V-230V). This gives you maximum flexibility — use it in the garage powered by wall current, or on the road via your car's cigarette lighter socket. Featuring a 22mm high-volume cylinder, the AC-1866 delivers rapid inflation up to 150 PSI with approximately 5-6 minute full inflation time for a standard 195/65/R15 passenger tire. The built-in digital pressure gauge displays readings in PSI, BAR, KPA, and Kg/cm squared with precision accuracy. An automatic shut-off function prevents over-inflation once your target pressure is reached. The extended power cord and air hose provide excellent reach around your vehicle. A bright LED work light ensures clear visibility of the tire valve in dark conditions. The included adapter kit makes it compatible with bicycles, motorcycles, sports balls, inflatable toys, and air mattresses. Whether you are a home mechanic, weekend warrior, or road trip enthusiast, the AC-1866 delivers the convenience of dual power sources with professional-grade inflation speed.