Check the listing for details. US Voltage Protector Surge Home Refrigerator Power Outlets Socket 120V. Condition: New. Listed at 9.88 USD. Automatic Induction Protection: Protect your electrical devices by interrupting the current flow from voltage spikes, instant surge, voltage fluctuation, brownout, and that voltage which are too high or too low. if you have any questions, please do not hesitate to contact us immediatelyDelay 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 inform its user. The appliance would be delayed for 3 mins to confirm that the voltage is stable so that it could be re-established.Working Principle: As there is an interruption in the current flow, the Voltage surge protector gives an interval of 3 minutes to allow the voltage to stabilize. Additionally, the Voltage surge protector provides protection against voltage spikes that can damage electrical equipment.Applicable Equipment: The voltage (surge) protector suit for Air Conditioners, Freezers, Ice Makers, Washing Machines, or any Appliances. ​ ParametersOperating Voltage：120V ACOperating Frequency：50 Hz-60 HzUnder Voltage Cut-off ：90V ACOver Voltage Cut-off ：140V ACHysteresis For Cut-off：3V to 5V ACStart-up /Delay Time：3MMax Ambient：45℃Output Capacity： 12A ,1440W 4 LED Indicator LightsGreen：Output indicatorYellow：Delay indicatorRed：Overvoltage indicatorRed：Undervoltage indicatorWhat's in the package1 x Surge Protector