What is a Transformer?
Transformer definition - A device that reduces or increases voltage. In home wiring, transformers step down current for use with low-voltage equipment such as thermostats and doorbell systems.
Ideal Home Garden Explains
A transformer regulates the electricity that is used in a household. Transformers are usually located away from the house on a thick wooden pole. Electrical wires travel from the house to the to the transformer, which provides electricity.