The voltage regulator ensures that the voltage generated by the alternator/coil remains stable at approximately 6 volts.
This protects the lights and other electrical components from overvoltage, which could otherwise lead to burnout.
Regulators with rectifier settings can convert the alternating current from the alternator to direct current (DC), which is useful if you have a battery.
In addition, it helps regulate the electrical load at varying RPMs, ensuring components function correctly, even at low or high speeds.
