... ,over temperature protection.3. High energy efficiency,average efficiency accord with ES&CEC08 standards.4.High reliability,long life,MTBF:100 ... (full load,25°C,Mil-HDBD-217F)5. certificates:CE,CB,UL,GS,SAA,ROHS ect6.Portable and low leakage current ... resistance:DC 500V 100MΩ(min) universal switching power supply for electronics with 60Hz frequency,output 12w max and UL,FCC,ROHs marks ...