What is a transformer and why do I need one?

Most good garden lighting works at 12 volts, so you need to locate transformers in the garden or nearest building and use flexible low voltage cable from the transformer to the lights themselves. A transformer is an electrical or electronic device which changes voltage from one level to another; in lighting this is usually from 240 volts to 12 volts, which is the voltage at which many garden lighting products work.

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