... of power saver A2 1.Cost saving solution, a breakthough in technology2.proven to safe within the first month3.save up ... 30% of expense on electricity bill4.easy to use, just plug in and star saving5.prolong your appliances life span and maintenance ... : 50Hz-60Hz.9.A2 Intelligent Electricity saver can be used in Homes , shops, Restaurants, offices, Factory(single phase), etc. Power Saver ...