【Indicator】: Light indicators for Normal(Output), High(SOBRE VOLTAJE), Low(BAJD VOLTAJE), and Delay(CICLO DE ESPERA) (💖The printed text and instructions of this surge protector are in Spanish. If you have any questions, please do not hesitate to contact us immediately) 【Delay Function】: If the device encounters (electric power) voltage fluctuations, it will protect the appliance by providing the output until the voltage stabilizes. The lighted “DELAY” indicator (CICLO DE ESPERA)can 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】: Because of interruption in the current flow, the Voltage surge protector gives an interval of 3 minutes to stable voltage. Additionally, the Voltage surge protector can also provides protection against voltage spikes that can damage electrical equipment. 【Applicable Equipment】: The voltage (surge) protector is suitable for Air Conditioners, Refrigerators, Ice Makers, Washing Machines, and other Electrical Appliances. 【High-quality Materials】: Surge protectors uses high quality prongs and its shell is made from PC flame retardant material. It can reduce risks effectively.