Why is the power transformer called Huoniu

Huo Niu generally refers to power transformers or power adapters, which is a common term in Hong Kong.

Apr 23,2025

Huo Niu generally refers to power transformers or power adapters, which is a common term in Hong Kong. In ancient times, people used fire for cooking and lighting, while modern people have switched to using electricity for cooking and lighting. People in southern China commonly refer to this new energy source as electric fire. Cattle were the source of power for ancient people; The power source for modern people is electricity, and the power transformer provides this new source of power. The ancestors of Hong Kong people were all southerners, and the nickname 'Huo Niu' for power transformers comes from this reason.

Why is the power transformer called Huoniu

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