About this item Applicable Devices: The power surge protector outlet is suitable for air conditioners, freezers, ice makers, washing machines, ovens, microwave ovens, dishwashers, coffee machines, bread machines, water heaters, and electric fans, etc. LED Indicator: Light indicators for Normal (Output), High (Overvoltage), Low (Undervoltage), and Delay. Delay Function: If the device encounters voltage fluctuations, it will protect the appliance by providing the output until the voltage stabilizes. The DELAY indicator would be turned on to show the condition. The appliance will be delayed for 3 minutes to confirm that the voltage is stable before re-establishing it. Automatic Induction Protection: Protect your electrical equipment from voltage spikes, momentary surges, voltage fluctuations, and brownouts by interrupting the current when the voltage is too high or too low. How it works: When the current is interrupted, the small wall surge protector will provide a 3-minute interval to st