I'm thinking that you're getting your power sources confused as your question doesn't make a whole lot of sense.
"Could I plug this device to the trailer 12v outlet [COLOR=](No. The device in your link plugs into a 110 volt AC outlet, not a 12v DC outlet) and attach my cigarette lighter inverter to it [COLOR=](your cigarette lighter inverter plugs into a 12v DC power supply and provides a 110v AC output. If you plugged it into this device, you would be taking AC to DC via the adapter, and then taking DC back to AC with your inverter. No value or purpose in doing this.) while not plugged in to shore power? I know the device states AC to DC but I just want to cross this out as a possible solution if need be. If not, can someone recommend another device that will accomplish this? I just want to plug the inverter in right next to the tv. Thank you and sorry if you have to copy and paste!
I believe from my reading of your post, that you are wanting to run your AC television off of DC power, right? If you have a DC outlet pre-wired to a location inside your coach, I suppose that you could just plug a portable DC-to-AC inverter directly into this outlet and then run your television from the AC inverter. This assumes, of course, that this portable inverter is designed to provide the amperage needed to run the television. If all you have are AC outlets in the coach, you'll need to wire an inverter directly into the batteries.
I hope this adds more clarity than confusion...
