About this item Automatic Induction Protection: Protect your electrical devices by interrupting the current flow from voltage spikes, instant surge, voltage fluctuation, brownout, and that voltage which is too high or too low. Delay Function: If the device encounters voltage fluctuations, it will protect the appliance by providing output until the voltage stabilizes. The DELAY indicator will be activated to inform the user. The appliance will be delayed for 3 minutes to confirm that the voltage is stable. Working Principle: With an interruption in the current flow, the voltage surge protector provides an interval of 3 minutes to allow the voltage to stabilize. It also protects against voltage spikes that can damage electrical equipment. Applicable Equipment: This voltage protector is suitable for air conditioners, freezers, ice makers, washing machines, and other large appliances. LED INDICATOR: Light indicators for Normal(Output), High(Overvoltage), Low(Undervoltage), and Delay. Size