STAR ST-500A Automatic Voltage Regulator.
Function: This device automatically regulates voltage levels to ensure a stable and consistent power output, protecting electronic appliances from damage caused by voltage fluctuations.
Specifications: It has a capacity of 500VA, an input voltage range of 160V – 260V AC, and an output of 220V / 110V ±10% at 50/60Hz.
Features: The ST-500A includes automatic delay and under-voltage protection, as well as dual analog meters for monitoring input and output voltage.