It lets you provide two outlets for 115 Volts AC anywhere you have 12 volts DC; in your car, truck, RV or boat. It is designed to be easy to use and provide years of dependable service. IMPORTANT SAFETY NOTE Read all the Cautions and Warnings before installing and using the power inverter. The inverter must be properly installed. If you are not familiar with 12 volt, high-current wiring, it is recommended that you have a professional automotive installer install the inverter. Cautions • The STP-