... quality power saver for home use Euro,USA,UK plug save electricity %15-30 metal case 90-250V,10years life ... with single phase electric socket Voltage90V-250V ACFrequency50/60HzLoad30KWSuitable temperature range-50-50Method of Power compensationAutomaticMain functions1. Save electricity2. Legal, ... ,blue,black,gold color for choose10.Easy to use,just plug to any socket,then ok. welcoem for OEM &ODM ...