30KW high quality power saver for home use Euro,USA,UK plug save electricity %15-30 metal case 90-250V,10years life ... for home use with Euro,USA,UK plugWork StatusSuitable for families, commercial area or the place with single phase electric socket Voltage90V-250V ACFrequency50 ... ,blue,black,gold color for choose10.Easy to use,just plug to any socket,then ok. welcoem for OEM &ODM Cooperation