Applicable Devices: The power surge protector outlet suits 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 (electric power) 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 would be delayed for 3 mins to confirm that the voltage is stable so that it could be re-established Automatic Induction Protection: Protect your electrical equipment from voltage spike, momentary surge, voltage fluctuation, and brownout 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 give a 3-minute interval to s