No, the converter converts 120 volts AC to 12 volts DC. The 12 v DC powers your lights, refrigerator, and furnace. The outlets (and anything else that uses 120 v AC) are only powered if you are connected to shore power. An inverter would supply 120 volts AC if connected to a battery. Most RVs do not have an inverter unless someone has added on as a mod. You would need a substantial amount of battery power to run an inverter very long with much of a load. A generator would also provide the 120 volts AC and provide higher power.
2014 Eagle Premier 361REQS
2013 Ford F350 Crew w/ 6.7 diesel