To tell the truth, the main reason I installed an inverter in the fifth wheel was because I had an extra one laying around. When we stopped at a Camping world store a few years ago, they had some on a closeout table priced very reasonably. I bought one and stuck it on a shelf in the garage. The inverter is not anything fancy. It's only 1200 watts, but that's plenty for smaller needs when we're in the boonies with no shore power. I added another house battery as the trailer only came with one. This doubles the amp hours of available power. The inverter is mounted to the firewall inside the front storage area. Between the batteries and the inverter I mounted a large fuse as a safety measure with such high amperage. Then I ran a 110v cable to the interior of the RV, terminated it on a standard outlet and also installed a remote on/off switch to control the inverter. There are two grounded outlets on the top of the unit. One is permanently connected to the wall outlet inside. The other can be used for an outdoor extension cord to connect power tools, a TV set or radio when commercial power is unavailable. It can also be used for charging phones and computers in an emergency.