AVR High precise degree, easy to adjust, less waste, long working time, allowed momentary overload 1.6 times rated capacity. Input voltage: 150V~250VOutput voltage: 220V±3% 110V±6%Over voltage protection: 246V±4VFrequency: 50Hz/60HzUsage area: computer, copy machine, testing equipments, lighting equipments,TV equipments, medical equipments, communicating equipments,industrial automation etc. ...