What is the difference between low-voltage lighting and the lighting I am now using in my home?

Traditional or the most commonly used light sources are powered by 120 volt current. This is known as line voltage and is the standard current. When you plug something into an outlet you are accessing this 120 volt current. Low-voltage lighting operates on a 12 volt current. This is similar to the amount of electricity used by a car battery. 12 volt is much safer and more energy efficient.