... regul.R&NEfficiencyA-200-55V,40A1%100mV78%A-200-1212V,16.7A0.5%100mV80%A-200-2424V,8.3A0.5%150mV83% ... I/P-O/P,I/P-FG: 1.5KVAC,O/P-FG:0.5KVAC,1 min operating temperature.............-10-50°C@100 ... .................... accord with GB4943, UL60950-1,EN60950-1EMC standard ...................... accord with GB9254, EN55022 class AWeight............................0.95kgs/pcs power supply for led display