Latest and high-efficiency electric power saving technology - Provides effective protection for electricity appliances prolongs their lifespan - High-efficiency energy saving device which is designed mainly to meet the household demands - Save energy efficiently - Environmental conservancy - Easy to use maintenance free - Prolongs the lifespan of appliance - Stabilize electrical current - Reduces electrical overheating - Surge protection - Plug the electricity-saving box into any sockets at home - Compatible with AC 90~250 V (EU plug) - Comes with English user manual