Here, you will find definitions of terms frequently used in the world of RVs.
115 VOLT SYSTEM
The main electrical source from the local municipality.
120 AC/12 DC/LP GAS
The power sources on which RV refrigerators operate; 120 AC is 120-volt alternating current (same as in houses); 12 DC is 12-volt direct current (same as in motor vehicles); LP-gas. Some RV refrigerators can operate on two of the three sources, others on all three.