Yixing Electronic produces an automatic voltage regulator (AVR) with an American plug. The standard voltage in the US is 120V and the power frequency is 60Hz.

Yixing UK AVR is an automatic voltage regulator designed for UK plugs. It protects TV, gaming PC, and computers so they operate in a stable voltage environment.

Yixing Electronic Technology provides an automatic voltage regulator with an Argentina plug, AR AVR automatically adjusts and stabilizes the output voltage.