Your Prowler may not have a 12 volt to 120 volt inverter. In most cases a power inverter is not standard equipment on 5th wheels. Hopefully you have all of the original documentation for your trailer. In that documentation you should find a separate owner's manual for the inverter that may have been installed on your Fifth Wheel.
Power inverters come in all shapes and sizes. Some simply plug into a cigarette lighter outlet and others are hard wired to the house batteries of your RV.
For more information on inverters please read the answers I gave to the questions below:
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