units are designed to convert 120 volts AC (household electrical
energy) into nominal 12 volt DC (automotive electrical energy).
supply is used to run the pumps, motors, fans and lights in
recreation vehicles. If working properly a converter/power
supply will protect against low line voltage and spikes coming
from the AC power source or from improperly adjusted generators.
should also minimize radio and TV equipment interference,
especially on the lower frequency bands.