Low-frequency transformers are an essential component in the HVAC industry, used to regulate voltage and current in heating, ventilation, and air conditioning systems. One of the main advantages is their reliability. They are designed to withstand the high currents and voltages typically found in HVAC systems, and are built to last for many years. They can be customized to meet the specific needs of different HVAC systems, and can be designed with different input and output voltages, as well as different power ratings.