A transformer is a device designed to help lighting systems reduce high voltages. This transition from high to low voltage is referred to as “step-down.” Transformers are often used in homes with monorail/track and landscape lighting systems. They convert 120 volts to 24 volts or 12 volts, whichever the lighting system requires. While 120 volts is the standard residential electric current, many systems need lower voltage to function. Many household appliances also use transformers. These include doorbells, thermostats, external path lights, and under-cabinet lighting. There are two transformer types: electronic and magnetic. Both varieties have unique applications, advantages, and disadvantages. Electronic and magnetic transformers shouldn't be mixed in the same dimming circuits. With a high-voltage counterpart, like lighting, a low-voltage transformer is less costly. Installation is also likely to be far easier and it may not even need the help of a professional. This is because the voltage is either 12 or 24 volts, meaning it's relatively harmless. Additionally, wiring can be buried under the surface or laid right on top of the ground. Both types of transformers have their own pros and cons. It’s important to consider the specific requirements of the system being installed.