... 4.More than 24hours aging time with 100% load Input voltage & Frequency range----------85~264VAC/47~63HzStart rush ... hold time ---------------≥10mS@120VAC,≥20mS@230VACInsulating strength-------------------Input—Output:AC1500V,1min Input--Enclosure:AC1500V,1min Output--Enclosure:DC500V,1minWork environment ... NoiseEfficiencyMSD-060-1212V5A±3%≤50mV73% Certificate:Packing : 220v 12v power supply