Product Function: Please test before each use. Follow the instructions. 1: Plug the Fi circuit breaker into a power outlet or outlet. 2: Test and make sure the light is on before use. 3: Plug in your appliances or your power tools to the fi adapter. 4: The Fi circuit breaker trips as soon as it detects a power failure, thus protecting personnel from electric shocks. The personal protection socket effectively prevents electric current accidents, and once a differential current occurs, the live conductor is separated instantly. Reliable personal protection with error current 10mA nominal. Features: Maximum power: 3500W Power: 3500W Fi circuit breaker provides additional protection against the risk of electric shock When a current leakage (10mA) is detected, it cuts off the power in 0.1 seconds to protect your family. Flame-retardant polycarbonate material, sturdy design that can be used indoors and outdoors. FI sockets can be used in high temperature, high humidity and other environments, and the temperature range is and40C at -25C. Built-in safety adapter for personal safety (220-250V), compatible with refrigerators, microwave ovens, water heaters, air conditioners and other household appliances. Package includes: Converter1 Specifications: H3O-16 Main points: 1. Product size is measured manually, there may be errors 2. Since different monitors display different colors, please refer to the actual color you received. 3.Please confirm the size before purchasing.